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Elenna [48]
3 years ago
10

On these chromosomes, which pair of genes would

Biology
1 answer:
Dimas [21]3 years ago
7 0

Crossing-over occurs when two homologous chromosomes exchange genetic material during meiosis I. The closer together two genes are on a chromosome, the less likely their alleles will be separated by crossing-over.
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Why is transpiration a necessary evil
Leto [7]

Answer:

for movement of water through an organism

Explanation:

transpiration is the process by which water is transported from the roots to the leaves of a plant through the xylem

8 0
3 years ago
You perform the following dihybrid cross: A blaBx Ab/aB. The A and B genes control different traits. What phenotypic ratio would
Luda [366]

Answer:

Option-D

Explanation:

In the given question the genotype of parental allele is- AbaB X AbaB. The alleles formed will be- AB, Ab,aB, ab in which the crossover allele will be AB and ab.

1. Unlinked genes

Now of these alleles are unlinked then the alleles will assort independently of each other therefore performing the punnett square we will get dihybrid ratio as 9:3:3:1 in which  

1. A_B_ are 9

2. aaB_ are 3

3. A_bb are-3

4. aabb- 1

Since the crossover allele are AB and ab therefore A_B_ are 9 and aabb- 1 represent recombinant genotype.

2. Linked genes

When the genes will be linked then chances of crossing over will be reduced as a result of which only two type of allele will be formed which are-  Ab and aB and the recombinant frequency will become less.

Crossing these allele will  form Aabb , AaBb , AaBb  and aaBB  genotypes. The recombinant ratio will decrease as A_B_ is 2 and aabb is not present.

Thus, option-4 which states that the unlinked ration is  9:3:3:1  and linked ratio is  <9: >3: >3: <1 is correct.

7 0
3 years ago
Which is the function of the enzyme DNA polymerase during replication?
expeople1 [14]
Winds up the replicated DNA Strand
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Nancy suffer from insulin dependent diabetes mellitus and is on insulin therapy. You administered her insulin dose orally and re
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Answer:  Insulin is a hormone, which is secreted by the pancreas to regulate the sugar levels in the bloodstream.

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Insulin is a protein hormone if take orally, will get digested in the digestive tract, it will not be able to affect the target site of action.

Insulin gets denatured in the digestive tract. Thus it will not be able to control the blood sugar levels.

Nancy has taken the insulin dose orally, the insulin will get denatured in the digestive system, it will not function and Nancy will remain hyperglycemic after the consumption.

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3 years ago
What 3 glands contribute to makeup of semen
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the three accessory glands: the seminal vessicles, the bulbourrethhral gland, and the prostate

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