The somatic cells of mosquitoes contain six total chromosomes . Based on this in

Question

The somatic cells of mosquitoes contain six total chromosomes. Based on this information, answer the following questions.

1.How many homologous pairs of chromosomes are present in a somatic cell?

2.In a mosquito with no meiotic errors, how many chromosomes come from the father’s genome?

3.Assuming no errors, how many chromosomes would be present in an egg cell?

4.Trisomy could occur as a result of nondisjunction during meiosis. In order for nondisjunction to lead to trisomy, how many chromosomes would be present that egg cell?

5.How many chromosomes would be present in a somatic cell of an adult mosquito with monosomy?

Explanation / Answer

1. 3 homologous pairs of chromosomes will be there.

2. 3 chromosomes from father and 3 from mother.

3. 3 chromosomes would be present in egg cell.

4. 2n+1

2×3+1=7

5. 2n - 1

2×3-1=5

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