In mice, muscle cells contain 40 chromosomes - HSC - SSCE Biology - Question 8 - 2022 - Paper 1
Question 8
In mice, muscle cells contain 40 chromosomes.
Which of the following is a correct statement about mouse cells?
A. The gametes contain 20 pairs of chromosomes.
B. ... show full transcript
Worked Solution & Example Answer:In mice, muscle cells contain 40 chromosomes - HSC - SSCE Biology - Question 8 - 2022 - Paper 1
Step 1
The gametes contain 20 pairs of chromosomes.
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is correct. Since mouse muscle cells contain 40 chromosomes (or 20 pairs), the gametes, which undergo meiosis to reduce the chromosome number by half, will contain 20 chromosomes, or 10 pairs.
Step 2
The somatic cells contain 20 pairs of chromosomes.
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect. The muscle cells, which are somatic cells, contain 40 chromosomes (or 20 pairs), not 20 pairs.
Step 3
The cells produced by meiosis contain 40 chromosomes.
96%
101 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect. Cells produced by meiosis, which are gametes, contain half the number of chromosomes, resulting in 20 chromosomes, not 40.
Step 4
The cells produced by mitosis contain 40 pairs of chromosomes.
98%
120 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
This statement is incorrect. Mitosis results in daughter cells that are identical to the parent cell, maintaining the chromosome number at 40, but it should be referred to as 40 chromosomes or 20 pairs, not 40 pairs.
