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Chapter 12: Q12.1-2CC. (page 237)

A chicken has 78 chromosomes in its somatic cells. How many chromosomes did the chicken inherit from each parent? How many chromosomes are in each of the chicken鈥檚 gamete? How many chromosomes will be in each somatic cell of the chicken鈥檚 offspring?

Short Answer

Expert verified

The number of chromosomes inherited from the parent is 39. The number of chromosomes carried by each gamete is 39. The total number of chromosomes in the offspring is 78.

Step by step solution

01

Reproduction and number of chromosomes inherited from each parent

Reproduction is the process of fertilization of male and female gametes that results in the formation of offspring. The offspring tends to inherit the genetic characters of the parent.

The total number of chromosomes present in the somatic cells is 78. Somatic cells are non-reproductive cells. From the total number, only half the number of chromosomes gets inherited from the parent. The number is 39.

02

Chromosome in chicken gametes

The gametes are the reproductive cells produced by the male and female. The number of chromosomes inherited is 39. These 39 chromosomes are the count found in the gamete of the chicken.

03

Number of chromosomes in the offspring

The total number of chromosomes present in the offspring cell is the total count of chromosomes present in each gamete.

The count of chromosomes in each gamete is 39. Then, the total number of chromosomes in the somatic cells will be78.

Hence, the number of chromosomes inherited from the parent, chromosome found in chicken gamete, and chromosome present in offspring are 39, 39, and 78, respectively.

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