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frozen [14]
3 years ago
6

Which technique could be used to determine the relative number of bases in fragments taken from a

Biology
1 answer:
faltersainse [42]3 years ago
7 0
The answer is electrophoresis. The electrophoresis can separate different length of DNA fragments using the agarose gel. The principle is that the DNA has negative charge and under constant volt it will move from negative to positive. And the longer the DNA is, the slower the DNA runs.
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Which statement regarding the hypothalamus is FALSE?
Margarita [4]

Answer:

All the options are correct regarding hypothalamus.

Explanation:

The hypothalamus is the part of the forebrain. The diencephalon is divisible into 2 parts - thalamus and hypothalamus. It regulates various functions of the body.

This is the thermoregulatory center of the body. It gives the signal to sweat during a hot environment and shiver in winter. This maintains the water balance in the body by stimulating the secretion of ADH hormone in the kidney.

Hypothalamus also has regulated anterior pituitary hormone secretion. Thus it controls the endocrine secretion of pituitary glands.

This plays an important role in hunger and thirst. The feeding habits like the licking of lips, swallowing, and salivating by seeing delicious foods is due to hypothalamic activities.

The behavioral activities of individuals influenced by the hypothalamus.  It is worked along with the limbic system of the brain. The behavioral activities include fear, punishment and sexual desire.

6 0
3 years ago
Diana jones is 5'4" and weighs 145 pounds. would the anesthetic choices be the same for diana as they would be for a 6'3" 210 lb
ankoles [38]

Answer:

Propofol (another name Diprivan) can be used for Diana's surgery. It is a sedative or anesthesia commonly used for children and adults. Studies show that there were no significant differences in dose requirements based on sex or age, except for the too elderly.  The difference in dosing considering different body weights were not statistically significant also.  The same dose is safe

( 0.1-0.15 mg/kg/min IV for 3-5 min) for Diana, the 210 lb man or a 10-year-old girl. However, the dose was higher in patients with bradycardia and hypotension. 

8 0
3 years ago
Which structure transports water and nutrients from Roots to the next of the plant
Aloiza [94]

Xylem and Phloem tissues are present throughout the plant. They begin at the root and then move up to the stem, branches, and leaves. The xylem tissue transports water and minerals from the roots to the leaves whereas the phloem tissue transports food from the leaves to the other parts of the plant.

4 0
3 years ago
Some viruses attack cells by inserting their own dna into the host cells dna why might it be simpler for these viruses to attack
Pie

Answer:

The DNA in eukrayotic cells is much more protected than the DNA in prokaryotic cells

Explanation:

DNA in eukaryotic cells lies within the nucleus. This DNA has a membrane protecting it from the outside. This means that the virus will have a harder time at getting to the DNA to insert its own DNA into it.

Prokaryotic cells have their DNA loose within the cytoplasm. This DNA is not protected. The virus will have to pass only 1 membrane in order to get to this DNA.

4 0
3 years ago
What is the characteristic of the gastrula stage of embryo development? select one of the options below as your answer:
Triss [41]
Hi lovely,

The answer you're looking for would be B).
4 0
3 years ago
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