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Y_Kistochka [10]
2 years ago
11

Which of the following can typically decrease genetic variation?

Biology
1 answer:
lapo4ka [179]2 years ago
5 0

QUESTION:Which of the following can typically decrease genetic variation?

toxins

predator-prey relationships

competition

new habitat

disasters

increased food supply

ANSWER:

1. toxins

2.predator- prey relationships

3.competition

4.new habitats

5. disasters


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Would you withdraw CSF if the needle were accidentally inserted into the epidural space instead of the subarachnoid
castortr0y [4]

Answer: No. You would not withdraw CSF if the needle is in the epidural space.

Explanation: There are 3 spaces that cover the spinal cord, which are epidural, subdural and subarachnoid spaces. The epidural space is the outer most space while the subarachnoid space is the inner most space. CSF flows from the brain where it is produced to the spinal cord. In the spinal cord it flows only in the subarachnoid space. Thus you would not be able to withdraw CSF if the needle is in the epidural space.

3 0
2 years ago
Name two properties of a good marker and explain why good markers are important.
Semenov [28]

Answer:

The overview is defined in the clarification section elsewhere here, and according to the particular circumstance.

Explanation:

Including genetic mapping as well as tracing the characteristics of hereditary disorders, genetic markers are valuable.

Basic DNA sequence determination for chromosomes.

  • Healthy Marker Properties.
  • This needs to have been Polymorphic.
  • It is indeed meant to be non-epistatic.
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3 0
1 year ago
In a population of grasshoppers, the color green (G) is completely dominant over the color brown (g). If 23% of the population i
barxatty [35]
The answer is 49.92%

Let's use the <span>Hardy-Weinberg principle:
p + q = 1
p</span>² + 2pq + q² = 1
<span>
where:
p - the frequency of dominant allele G
q - </span>the frequency of recessive allele g
p² - the frequency of homozygous dominant individuals GG with colour green
2pq - the frequency of heterozygous individuals Gg with colour green
p² - the frequency of homozygous recessive individuals gg with color brown

23% of the population is brown: p² = 23% = 0.23
p = √(p²) = √0.23 = 0.48

p = 0.48
p + q = 1
0.48 + q = 1
q = 1 - 0.48 = 0.52

<span>The percentage of the population that is expected to be heterozygous is 2pq:
2pq = 2 * p * q = 2 * 0.48 * 0.52 = 0.4992 = 49.92%</span>
3 0
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What might be a natural reason for low survival rates of jaguar cubs
Vladimir79 [104]
Disease or sickness
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The outer layers of a red giant keep expanding until they eventually drift off and form a ______ ______.
lidiya [134]

planetary nebula

hope this helps ;)

8 0
2 years ago
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