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slava [35]
3 years ago
13

How does crossing over add to the genetic diversity of sexually reproducing organisms?

Biology
1 answer:
neonofarm [45]3 years ago
8 0
<span>Crossover is the first way that genes are shuffled to give rise to genetic diversity. Crossover takes place in sexual reproduction. Chromosomes line up side by side and break off pieces of themselves, then trade those pieces with each other. When they break at the same place (locus) in the sequence of base pairs, the result is an exchange of genes called genetic recombination. That is the normal way for crossover to occur. Genetic recombination ensures that the daughter cells produced have a different genetic makeup from the parent cell and thus diversity is created.</span>
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Among rabbits, short hair is dominant over long hair. What would be the appearance of the
blagie [28]
Answer: 100% short hair

Explanation: there will 50% homozygous short hair (HH) and 50% heterozygous short hair (Hh).

Check out the punnet square down below to see how it’s done.

8 0
3 years ago
In a minute to win it game cards are placed between cups to stack them. The contestant then pulls the card out and hopes they wi
Lostsunrise [7]

Answer:

The third one, The opening of the cup is so much bigger than the bottom even though the cup moves they will both be stacked together. (I think)

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5 0
2 years ago
Which of the following statements about gluconeogenesis in animal cells is true?
MakcuM [25]

Answer:

C. THE CONVERSION OF FRUCTOSE 1,6-BISPHOSPHATE to fructose- 6- phosphate is not catalyzed by phosphofructokinase -1, the enzyme involved in glycolysis.

Explanation:

This statement is true as the enzyme involved in this step is FRUCTOSE-1,6-BISPHOSPHATASE.

Gluconeogenesis is the coversion of non-carbohydrate molecules (lactic acid, amino acids, glycerol) through the pyruvic acid into glucose in the cells.

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The pathway of gluconeogenesis involves eleven steps of enzymatic catalyzed reactions.

In the conversion of fructose 1,6- bisphosphate to fructose-6-phosphate is catalyzed by fructose 1,6-bisphosphatase and not by phosphofructokinase -1 which is involved in glycolysis. This step is a rate-limiting step of the pathway.

The conversion of glucose-6-phospahte to glucose is not catalyzes by hexokinase but glucose -6- phosphatase.

7 0
3 years ago
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arsen [322]
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7 0
3 years ago
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In translation, the cell uses the genetic information contained in mRNA to make the proteins that carry out the cell's work.
Jobisdone [24]

Answer: d). UAG

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From the DNA sequence above, 3'TAG will first be transcribed into an mRNA sequence AUC, then the anticodon on the tRNA will be UAG. The mRNA codon-tRNA anticodon base pairing follows the Watson and Crick base pairing in which Adenine pairs with Uracil and Cytosine pairs with Guanine.

5 0
3 years ago
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