i think the answer is D ...

Answers

Answer 1

Yes, D is correct. There are four combinations of alleles: BB, Bb, Bb, and bb. bb is one out of the four possibilities of allele combinations inherited, and it represents the trait for white fur. There is no dominant brown allele to create brown fur, so it is the only option that will create white fur, thus making a 25% chance of offspring having white fur.

Related Questions

A 67-year-old client reports to her healthcare provider that she is having difficulty during intercourse, causing her pain and disrupting the intimacy that she and her husband are accustomed to sharing. what might be the cause of her pain?

Answers

The cause of the client’s pain must be because of atrophy of bulbouretheral glands. The bulbourethral glands are the one responsible for secreting a substance which we call alakaline, in order to be able to provide neutralization in the acidic environment in a person’s urethra. The bulbourethral glands are also responsible in having to provide lubrication to a person when having to do a sexual intercourse. If it gradually declines in its effectiveness, during sexual intercourse, it would likely cause the person to have pain and have difficulty in having to do an intimacy with the person’s partner as atrophy may be present in the person’s bulbourethral gland.

During which phase of mitosis do the spindle fibers help to pull the chromosomes to the center of the cell, where they line up?

Answers

Metaphase - Parallel fibers appear once the metaphase starts, and these are known as spindle fibers. The fibers attach to the centromeres of each chromosome. The spindle fibers make the chromosomes form into a tight kind of circle that surrounds the circumference of the spindle apparatus. There is an invisible line at which the chromosomes are aligned, that is called the metaphase plate

Answer:

Metaphase

Explanation:

The image below represents part of what process? Two identical rings of DNA present in one elongated cell.

A.Mitosis B.Meiosis C.Conjugation D.Binary fission

Answers

D. Binary fission

Binary fission is a process undergone usually by prokaryotic organisms, and it is a form of asexual reproduction. During binary fission, the organism replicates its DNA plasmids, which are circular structures containing genetic information. Next, the cell elongates and then divides into two cells, each possessing one of the plasmids. This way, two identical daughter cells are formed from the original parent organism.

Vegetation type of drought-resistant grasses also refers to a very dry climate, characteristic of southern russia, ukraine, and northern central asia

Answers

The vegetation type is called STEPPE. Steppe refers to the vegetation type in which there are only grassland plains; no trees exist in this eco-region. The countries of the world where this type of vegetation can be found include Russia, Ukraine, Hungary, etc. The steppe biome is a cold, dry grassland that exist in all the continents of the world except in Australia and Antarctica. Humidity level is usually very low in this biome because they are usually located far away from the ocean.

In kilometers, how much larger is the distance around the earth from east to west than the distance from north to south?

Answers

40,075.16 kilometers

A scientist bred fruit flies in two separate containers with different food sources for many generations. When she put the fruit flies from the two containers together again, she observed that the flies preferred mates raised on the same food. Which hypothesis was the scientist most likely testing?

A. Diet determines mate size.

B. Fruit flies are picky eaters.

C. Diet affects mate choice.

D. Fruit flies breed too quickly.

Answers

Answer:

C. Diet affects mate choice.

Explanation:

The scientist was testing diet affects mate choice in the given experiment. Thus, option C is correct.

What is fruit fly?

The scientific name of fruit fly is drosophila and it is small fly generally used in genetic research due to it's large chromosome, wast varieties, and fast rate of reproduction.

Drosophila comes from the family Drosophilidae and order is Dipetera and subfamily Drosophilinae, phylum Arthopoda, and kingdom Animalia.

The lifespan of drosophila is 2-3 month and it requires low maintenance and it is the rich source of genetic manipulation.

The full name of drosophila is Drosophila melanogaster and they are generally found near unripe, cut or rotted fruit. It is normally used for genetic study as well as behaviour as they contain polytene chromosome.

Therefore, the scientist was testing diet affects mate choice in the given experiment. Thus, option C is correct.

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What are natural fuels that come from the remains of living things?

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After millions of years, the remains of living things will turn into fossil fuels which are natural fuels. The combustion of these fossil fuels is important for the running of machinery, raising temperature in reactions and many more.

What causes an organism to use the process of anaerobic respiration?

Answers

the immediate lack of oxygen.

Answer:

The lack of oxygen

A.P.E.X approved

If a eukaryotic cell has 20 chromosomes and it undergoes meiosis, how many cells will result, and how many chromosomes will they contain

Answers

4 cells will result. Each cell will have 20 Chromatids which is half a chromosome. once sexual reproduction takes place, these 20 chromatids will match with those from the other parent cell to form chromosomes

Upon undergoing meiosis the result will be that 4 cells are formed and each one will have 10 chromosomes in it as genetic material.

What is meiosis?

Meiosis is one of the two types of cell division in which a cell divides to form 4 daughter cells. The genetic content that is passed on to each daughter cell is half of that present in the parent. That is the reason for meiosis also to be called 'reductional division'.

The complete meiosis is accomplished in two stages: Meiosis I and Meiosis II. Meiosis I is similar to the mitotic division.

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At the beginning of interphase in g1, a cell has 36 chromosomes. how many chromatids would be found in that same cell in g2 of interphase

Answers

Final answer:

In G2 phase, a cell that had 36 chromosomes in G1 phase would have 72 chromatids. This is due to DNA replication during the S-phase that duplicates each chromosome into two sister chromatids.

Explanation:

The question refers to the cell cycle, particularly focusing on phases of interphase (G1 and G2). If a cell has 36 chromosomes during the G1 phase, it will still have 36 chromosomes during the G2 phase. However, due to DNA replication that occurs during the S phase (synthesis phase), each chromosome would have duplicated into two sister chromatids. So, in the G2 phase, the same cell would contain 72 chromatids, as each chromosome now consists of two linked chromatids.

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What do scientists in the field of systematics accomplish?

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The field of systematics deals with the diversity of living organisms and the relationship between these organisms.

Scientists in this field classified the living organisms and organized them into classes.

Scientists in the field of systematics, also known as taxonomists, are involved in the study of biodiversity and the classification of organisms.

What is systematics?

Based on their shared traits and evolutionary ties, systematists strive to group species into hierarchical groupings. Taxonomic ranks like species, genus, family, order, class, phylum, and kingdom are established and revised by them.

This system of classification aids in the organization and dissemination of scientific data regarding the variety of life on Earth.

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Which process of soil erosion is being prevented by the activity shown below?

a-Gravity
b-Glaciers
c-Moving water

Answers

A- Gravity. I believe it is gravity since that is the only one that makes sense in this situation. I hope i helped! :)

Answer: a-Gravity

Explanation:

Soil erosion is a natural phenomena which involves the removal of the top or subsoil layers under the influence of factors such as water, wind and gravity.

According to the situation, the given activity is the mountain climbing. Generally in mountains the mass wasting is the most prominent phenomena. In mass wasting the soil, stones, debris and other materials moves downwards the slope region under the influence of gravity.

As it is shown in the figure the team mates are helping each other to climb the wall of the mountain this process is against the act of gravity. Hence, this process can be related to the soil erosion due to mass wasting against the act of gravity.

A structure located above the transverse plane is said to be:
A. Lateral
B. inferior
C. superior

Answers

It wouldn't be B because inferior means below, and it wouldn't be A because lateral means away from the vertical mid-line of the body. This leaves you with C, superior, which means relatively above something in anatomical terms.

Final answer:

A structure above the transverse plane is referred to as superior in anatomical terminology. The transverse plane divides the body into upper (superior) and lower (inferior) parts.

Explanation:

In anatomical terminology, a structure located above the transverse plane is considered to be superior. The transverse plane is a hypothetical plane that divides the body into superior and inferior parts, or in other words, upper and lower parts. Therefore, anything that is 'above' this plane (toward the head) is referred to as 'superior'. Lateral, on the other hand, refers to the side of the body or away from its midline.

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Hydrochloric acid is necessary in the stomach for the conversion of pepsinogen into its active protein-digesting form called __________.

Answers

Final answer:

Hydrochloric acid in the stomach is necessary for the conversion of pepsinogen into pepsin.

Explanation:

In the stomach, hydrochloric acid is necessary for the conversion of pepsinogen into its active protein-digesting form called pepsin.

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Animals such as pronghorn antelope, bison, and badgers dot the landscape. where are these animals located? africa the arctic near the equator the north american prairie

Answers

Animals such as pronghorn antelope, bison, and badgers dot the landscape. These animals are located in the North American prairie. The correct option is d.

What are habitats?

A habitat is where an organism establishes its base of operations. All of the environmental requirements are met in a habitat for an organism to survive. That refers to everything an animal requires in order to locate and gather food, choose a mate, and procreate successfully.

About 30° north and south of the equator, in the middle latitudes, are where you can find chaparrals. Coastal regions with Mediterranean conditions are where you'll find most chaparrals. A given organism's habitat is the place where it normally exists.

Forest, grasslands, deserts, mountains, polar areas, and aquatic habitats make up the five main habitat types. The aquatic habitat is composed of both saltwater and freshwater.

Therefore, the correct option is d, the North American prairie.

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Dimples (D) and brown hair (A) are dominant traits. Answer the following questions based on the dihybrid cross shown:

1) What genotype(s) would result in a phenotype of dimples and brown hair?

2) What genotype(s) would result in a phenotype of dimples and blonde hair?

3) What genotype(s) would result in a phenotype of no dimples and brown hair?

4) What genotype(s) would result in a phenotype of no dimples and blonde hair?

5) What is the phenotypic ratio for this cross? (Be sure to use words to indicate which number goes with which phenotype!)

Answers

Final answer:

Dimples and brown hair are dominant traits in a dihybrid cross. The genotypes for having both traits are DDAA, DDAa, DdAA, or DdAa, while individuals with dimples and blonde hair would have DDaa or Ddaa. The dihybrid cross phenotypic ratio typically follows a 9:3:3:1 pattern.

Explanation:

In a dihybrid cross where dimples (D) and brown hair (A) are dominant traits, we use a Punnett square to determine the genotypic and phenotypic outcomes of crosses. The questions relate to the genotypes that would produce specific phenotypes and the expected ratios of these phenotypes.

Genotypes Resulting in Specific Phenotypes:

The genotype(s) that would result in a phenotype of dimples and brown hair would be DDAA, DDAa, DdAA, or DdAa.

The genotype(s) that would result in a phenotype of dimples and blonde hair would be DDaa or Ddaa.

The genotype(s) that would result in a phenotype of no dimples and brown hair would be ddAA or ddAa.

The genotype(s) that would result in a phenotype of no dimples and blonde hair would be ddaa.

Phenotypic Ratio for a Dihybrid Cross:

For a dihybrid cross AaDd × AaDd, the phenotypic ratio would reflect a 9:3:3:1 ratio as per Mendelian genetics, resulting in 9 with both dominant traits (dimples and brown hair), 3 with one dominant and one recessive trait (dimples and blonde hair or no dimples and brown hair), and 1 with both recessive traits (no dimples and blonde hair).

Diffusion is the spontaneous movement of a substance from an area of what

Answers

From an area of high concentration to an area of low concentration.

The term __________ means abnormally increased muscle function or activity.

Answers

I guess it should be hyperkinesia

Final answer:

Hypertonia refers to abnormally increased muscle function or activity, often resulting from damage to upper motor neurons in the CNS. It contrasts with hypotonia, which denotes decreased muscle tone. Hypertonia often presents in conditions like Parkinson's disease and certain types of stroke.

Explanation:

The term that refers to abnormally increased muscle function or activity is hypertonia. It is typically characterized by excessive muscle tone and often accompanied by hyperreflexia or excessive reflex responses. This type of increased muscle activity is often the result of damage to upper motor neurons in the Central Nervous System (CNS). Examples of conditions that might include hypertonia include Parkinson's disease and certain types of stroke, both of which can result in muscle rigidity or spastic changes in muscle tone.

While muscle activity is usually a sustained, smooth process called a graded muscle response, abnormalities like hypertonia disrupt this function. The nervous system usually modifies muscle contraction to produce different amounts of force, but in cases of hypertonia, this process can be impaired.

Contrastingly, hypotonia is the term used to describe decreased muscle tone, so one could almost think of hypertonia as the inverse of this state. In summary, hypertonia is an excessive, increased level of muscle activity, while hypotonia is an abnormally low level of the same.

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Also exhibits as a situation in which there is a higher than normal number of white blood cells. in this case, the cause is often an infection that is being fought

Answers

The medical condition described above is known as LEUKOCYTOSIS. Leukocytosis refers to a condition in which the number of white blood cells increase in the blood especially during infection. It can be caused by inflammation, infection, allergic reaction, hereditary disorder, etc. There are five different types of leukocytosis.

What are the main characterstics of a deciduous forest

Answers

A deciduous forest is a forest comprised of trees that shed their leaves every year. These leaves fall off in early to mid fall, where they decompose during the winter, and new leaves are grown in the spring.

This is different from the opposing tree, the evergreen tree. This tree possesses needles, and is the only tree species that doesn't lose its "leaves" during the fall season.

Average temp is about 50 degrees F. Average rainfall is 30 to 60 inches. Animals living here must adapt to hot or cold weather. Leaves generally fall in the fall leaving the animals with less coverage from predators. Many flowers, but not much vegetation.

The image on the right represents polymerization. Label the parts and the resulting larger molecule.

Answers

Answer:

A: monomer

B: monomer

C: polymer

Explanation:

The image on the right represents polymerization and label the parts and the resulting larger molecule is polymer. Thus, option C is correct.

What is monomer and polymer?

A monomer is a type of molecule that can make chemical bond with any molecule and can form a long chain and polymer is a sequence of chain of an unspecified or unknown number of monomers.

Monomers are small sized molecules and they are organic in nature that can combined with similar molecule to form very large size of molecule, or the molecule is known as polymer.

The main example of monomers are glucose, amino acids, ethylene, and vinyl chloride. Each monomer combined to form polymers in other ways.

Therefore, the image on the right represents polymerization and label the parts and the resulting larger molecule is polymer. Thus, option C is correct.

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With a tension pneumothorax, which factors contribute to severe hypoxia?

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Answer: continually increasing pressure on the unaffected lung.

In tension pneumothorax, the pressure is so high that it will push surrounding organ like another lung, heart, or blood vessels. Pushing another lung can make it less expandable, so less air can come inside and less oxygen can be gained.
Pushing heart and blood vessels can also disturb blood circulation.

Explain the logic the woodcutter uses to justify cutting some of the trees for our use.

Answers

A woodcutter could justify cutting trees for use say in a pioneering situation whereby the pioneer needs shelter and food so trees could be necessary to say construct a small log cabin and table for eating/preparing food at to ensure the survival of the pioneer.

In any electrochemical cell, the anode is always the

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In any electrochemical cell, the anode is always the electrode at which some species loses electrons. The anode is the cell where the oxidation reaction happens. In oxidation reaction, electrons are donated or released as the reaction occurs. This results to an increase in the oxidation state of the atom. At this part of an electrochemical cell, the anions are pushed to react and release electrons which will then flow through the cell. The electrons released are gained by the atoms in the cathode which is the site for the reduction reaction. The cathode is the electrode where the species always gain electrons.

Which of the following undergoes change during a chemical reaction

Answers

What are the choices ?

Chemical bonds between atoms in reactants undergo change during a chemical reaction.

The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.

The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Another name for the evolutionary force called gene flow is:

Answers

Another name for gene flow is admixture.

Level _____ hazardous materials would cause irritation on contact but only mild residual injury, even without treatment.

Answers

Level 1 hazardous materials would cause irritation on contact but only mild residual injury, even without treatment.
The risk levels are rating from four to zero, highest risk to minimum risk.
Materials are too dangerous at level 4.
Materials extremely hazardous to health at level 3.
Materials hazardous to health at level 2.
Materials are only slightly hazardous to level 1.
Materials are not hazardous to health at level 0.

What is the role of bacteria in lichens?

Answers

They provide nitrogen

Which of the following is a process in which carbon is released back into the atmosphere?

Answers

Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.

The precancerous lesion associated with tobacco use that looks like a thickened, flat white patch on the mucous membrane of the mouth is __________.

Answers

The precancerous lesion associated with tobacco use that looks like a thickened, flat white patch on the mucous membrane of the mouth is leukoplakia.
Leukoplakia is a condition in which white or grey spots are formed inside the mouth. It is also known as smoker keratosis.. It may be consider as a early sign of cancer but most of these are non-cancerous.

Ans. 'Leukoplakia.'

Leukoplakia is characterized by development of flat, thickened, white patches, on the lining of mucous membrane of mouth and tongue. The most common cause of leukoplakia is smoking due to chronic irritation of cells from tobacco.

These patches are also known as precancerous lesions as more serious cases can lead to development of oral cancer.

Thus, the correct word to be filled in the blank is 'leukoplakia.'

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