After n cycles of PCR = 2^n copies of the target sequence
Where n = 30 cycles as given in the problem.
Substituting this to the identified formula, let
2^30 1,073,741,824 copies of the target sequence.
Therefore, a total of 1,073,741,824 copies would be produced.
The atomic mass of an element whose atoms consist of six protons, seven neutrons, and six electrons is _____.
6
12
13
19
If a person's vital capacity is 4000ml, her expiratory reserve volume is 1000ml, and her inspiratory reserve volume is 2500ml, and her tidal volume is ________.
What is the outer covering of a leaf called? asap!!
epidermis
mesophyll
stalk
leaflet
The correct answer is epidermis
Leaves are the vegetative part of the plants and they develop during primary growth from the apical meristem. Leaves are very vital organs of the plants as they synthesize food for the plants. The outermost layer of the leaf is covered with waxy coating called cuticle that protects leaves by preventing water loss. Below the cuticle, a single layer of cells epidermis is present. Leaf is may be upper epidermis and lower epidermis. Epidermis plays important role in protection of the leaves.
Why do microorganisms differ in their response to disinfectants?
What is the name given to blood clot within an artery? what is the answer?
If enough changes occur in the gene pool of a species, it is possible that a new species would be created.
a. True
b. False
The cell theory was continuously improved over the course of many years. Which scientific advancement directly led to this improvement?
A 23-year-old female client diagnosed with hiv is receiving lamivudine. which assessment finding would require the nurse to notify the healthcare provider?
Nestor is in the middle of a fantastic dream. what is his body doing? acting out the movements of his dream twitching uncontrollably his arms are likely moving, but not his legs nothing
The microscopic space through which an impulse is transmitted is a(n):
Licensed vocational nurses responsibilities include patient observation, takes vital signs, keeps records, assists patients with personal hygiene, feeding and dressing them which are considered activities of daily living (adls).
please help asap!!! johnny likes to watch birds that visit his bird feeder his favorite bird is the cardinal how could johnny determine which kind of bird seed cardinals prefer? explain your answer?
Answer:
By testing different seed
By examining the poop of cardinal bird
Explanation:
Seed is one of the major constituents of diet of Cardinal bird along with insects, wild fruits , berries etc. Johnny in order to determine the best kind of seeds need to conduct a small observatory experiment where he could place different varieties of seed in front of the cardinal bird at the place of feeding. The seed whose quantity reduces the maximum among all , will be the most preferred seed by Cardinal.
Also he can analyse the poop of cardinal bird to identify the most preferred seed
List the three type of blood vessels and their characteristic blood flow
The nurse is caring for a patient with acute pancreatitis. the patient has an order for an anticholinergic medication. the nurse explains that the patient will be receiving that medication for what reason?
Through what openings of the nose does inhaled air enter the upper respiratory tract? anterior nares posterior nares nasal cavity nasopharynx
Why are enzymes so important?
Because they act as a catalyst in the chemical reactions necessary for life within organisms.
Because they cause decomposition reactions.
Because they are the building blocks of proteins.
Because they are the building blocks of DNA and RNA
According to the british anatomist wilfrid le gros clark, the main tendencies that help to define what a primate is include
a. parental investment; similar dental specializations; and small brains.
b. all of the choices are correct.
c. prehensile fingers, toes, and tails; dietary plasticity; and enhanced sense of vision.
d. the ability to eat a wide variety of foods; investing time and effort into offspring; and adaptations to life in the trees.
Which of these actions would people in Florida most likely take to prepare themselves for the hurricane season?
Answer:
C. Cover windows with plywood
Explanation:
Pebbles caught in swirling eddies of water best describe ________.
Draw a flow chart/concept map that illustrates the mechanism whereby the faulty cf gene causes the production of thick mucus with less water in it than normal.
Which one of the following is NOT a branch of anthropology?
archeology
osteology
pathology
taphonomy
Answer:
taphonomy
Explanation:
Describe the kidneys with regard to their position to the parietal peritoneum.
The kidneys are retroperitoneal organs, positioned behind the peritoneum. They play a vital role in filtration and fluid balance.
Here's a concise description of the kidneys in relation to the parietal peritoneum:
1. **Anatomical Position**:
- The kidneys lie **retroperitoneally** (behind the peritoneum) in the abdomen.
- They are positioned on either side of the vertebral column.
- Typically, they extend from the **T12** vertebra to the **L3** vertebra.
- Note that the **right kidney** is often situated slightly lower due to the presence of the liver.
- Each kidney is approximately **three vertebrae** in length.
- The **adrenal glands** sit immediately superior to the kidneys within a separate envelope of the renal fascia.
2. **External Coverings**:
- The kidneys are encased in complex layers:
- **Renal capsule**: A tough fibrous capsule.
- **Perirenal fat**: A collection of extraperitoneal fat.
- **Renal fascia (also known as Gerota’s fascia or perirenal fascia): Encloses the kidneys and the suprarenal glands.
- **Pararenal fat**: Mainly located on the posterolateral aspect of the kidney.
3. **Internal Structure**:
- The renal parenchyma consists of two main areas:
- **Outer cortex**: Extends into the inner medulla, dividing it into triangular shapes called **renal pyramids**.
- **Renal papilla: The apex of each renal pyramid, associated with a structure known as the **minor calyx**.
- **Major calyx**: Several minor calices merge to form this structure, collecting urine from the pyramids.
- **Renal pelvis**: A flattened, funnel-shaped structure where urine drains from the major calices.
- **Ureter**: Transports urine from the renal pelvis to the bladder for storage.
4. **Renal Hilum**:
- The medial margin of each kidney features a deep fissure called the **renal hilum**.
- This serves as a gateway to the kidney, through which the renal vessels and ureter enter or exit.
In summary, the kidneys are strategically positioned behind the peritoneum, playing a crucial role in waste filtration, water balance, and electrolyte regulation in the body.
Aerosols and sprays are common dosage forms for the _____ route of administration
can someone help me please fast
A nurse reminds a client that it is time for group therapy. the client responds by shouting, "you're always telling me what to do, just like my father!" what defense mechanism is the client using? regression transference reaction formation cognitive distortion
Faults of enunciation, pronunciation, and articulation may be improved by _____.surgery
Reggie filled a clean and sanitized sink with cold water and ice. then he soaked a partial case of green onions that he had gotten from the cooler and a new case of onions delivered that morning together. was the food prepped correctly? ____________ why or why not? _______________________________
These stone tools made by h. erectus belong to the ___________ tool complex.
The sound of a police siren that is moving away has (1) _____ wavelengths, and one that is approaching has (2) ______ wavelengths.
1) a. longer b. higher c. shorter
2) a. lower b. Longer c. shorter
A. Longer
C. Shorter
The sound of a police siren that is moving away has shorter wavelengths, and one that is approaching has longer wavelengths.
Explanation;The pitch of the sound heard depends on the frequency of the sound wave. A higher frequency corresponds to a high pitch. Therefore, when the police siren is approaching an observer, the observed frequency increases and thus the observer hears a higher pitch.Conversely, when the police siren is moving away from an observer, then the frequency decreases and thus, the pitch of the sound heard is lower.A higher frequency corresponds to a shorter wavelength, therefore, the shorter the wavelength, the higher the frequency, and the higher the pitch, of the sound.What is the name of the neurotransmitter that excites muscle cells (causes them to contract)?