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spin [16.1K]
1 year ago
10

Question 4 (1 point)

Biology
1 answer:
Wewaii [24]1 year ago
5 0

Answer:

c) acidosis a higher carbon dioxide level

with alkalosis lower carbon dioxide

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Explain how a testcross can provide evidence for or against linkage.
MrRa [10]

Answer:

Testcrosses clarify linkage because each phenotypic class of progeny corresponds to each gamete type produced by the dihybrid parent.

Explanation:

  • A test cross involves the crossing of an individual with another phenotypically recessive individual so as to determine the zygosity of the former by analyses of the proportions of offspring phenotypes.
  • In order to determine linkage, the test cross shows that if the parentals are more than the recombinants, we can say that the two genes such as b and c  are genetically linked and therefore, they must be on the same chromosome.
  • Also, the test-crosses help to find out which alleles came from which parent.
  • By setting up testcrosses in which one parent is homozygous for the recessive alleles of both genes,we can analyze the gene combinations received in the gametes from the other, doubly heterozygous parent.
7 0
3 years ago
Visible light comes from which one of the sun's layers?
White raven [17]

Answer:

The correct answer is photosphere.

Explanation:

Visible light comes from the layer known as the photosphere.

The Sun's photosphere is the layer that emits visible light. The Sun's atmosphere has seven layers: The core, or the Sun's interior.  The radiative zone. The convective zone. The photosphere or the visible surface. The Chromosphere. And the corona, the outermost layer.

3 0
3 years ago
Read 2 more answers
What is 0.640 as a fraction in simplest form?<br> Enter the answer by filling in the boxes.
timama [110]

Answer:

16/25

Explanation:

0.640 = 640

____, cancelling one zero, we have

1000

= 64

___, cancelling by 4, we have

100

= 16

___

25

5 0
3 years ago
If the DNA is changed, what two processes would be impacted?
IrinaVladis [17]

Answer:

base substitutions and base additions or deletions

Explanation:

there are two main types of point mutational changes: base substitutions and base additions or deletions. Base substitutions are those mutations in which one base pair substitutes for another. They, again, can be divided into two subcategories: transitions and transversions.

(I hope this helps) :)

8 0
3 years ago
How do mountains change the earth’s surface
Kamila [148]

Because mountains impact on the climate and on the flat surface of the territory, and they effect lakes, rivers, and every human construction

7 0
3 years ago
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