Biology

Biology Biology

ISBN: 9780133669510 / 0133669513

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Section

Chapter Assessment

1.

B. 46 chromosomes

2 answ
2.

A. pedigree

2 answ
3.

B. ABO blood groups

2 answ
4.

Autosomes are the chromosomes that do not carry the specific genes that determine the sex of an individual and they are homologous, whereas sex chromosomes carry the genes that determine an individual’s sex and they are not homologous because X chromosome is larger than Y chromosome.

2 answ
5.

Alleles A and B are always dominant over allele O. As a result, a person who has an AO genotype will have an A blood type, whereas an individual who has a blood type O has OO genotypes. Therefore, if an allele A is inherited from one parent and an allele B from the other parent, the blood type of the offspring will be AB.

2 answ
6.

See solution

2 answ
7.

2 answ
8.

D

1 answ
9.

B

2 answ
10.

D

1 answ
11.

2 answ
12.

A chromosomal disorder is when there is an abnormal number of chromosomes in an individual. Down syndrome, Turner's syndrome, and Klinefelter's syndrome are chromosomal disorders that can result from nondisjunction.

2 answ
13.

2 answ
14.

A karyotype can only detect the chromosome number and its abnormalities. Since cystic fibrosis occurs when there is a mutation in the gene, it will not show in the karyotype. Therefore, the answer is no.

2 answ
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