Chromosomes

Question 1

Identify the structures on the right.Label A Label B Label C Label D

Revolt · Accepted Answer

DNA; nucleus; chromosome; histone

Question 2

B is representing a section of DNA that codes for a particular trait, which is a .

Revolt · Accepted Answer

gene

Question 3

A and B are both looking at different views of a .

Revolt · Accepted Answer

gene

Question 4

Identify the structures seen to the right.A is pointing to a .

Revolt · Accepted Answer

gene

Question 5

Which traits are likely to be different alleles of the same gene? Check all that apply.

Revolt · Accepted Answer

thick eyebrows and thin eyebrows; curly hair and straight hair

Question 6

Which phrases describe homologous chromosomes?

Revolt · Accepted Answer

They have the same genes in the same order.; One is inherited from one parent, and one is inherited from the other parent.; They can contain the same or different alleles.

Question 7

HH Hh hh

Revolt · Accepted Answer

homozygous; heterozygous

Question 8

The alleles pictured are

Revolt · Accepted Answer

heterozygous

Question 9

Identify the type of chromosomal abnormality described below. A person has a missing copy of the X chromosome. A baby has an extra copy of chromosome 18. A fetus is found to have four copies of chromosome 1.

Revolt · Accepted Answer

polyploidy; aneuploidy; trisomy; tetraploidy; polysomy

Question 10

Identify the type of chromosomal disorder described below. is known as trisomy 21 and impacts brain and body development. predominantly affects males and their fertility. predominantly affects females and can impact their growth.

Revolt · Accepted Answer

Turner syndrome; Down syndrome; Klinefelter syndrome

Chromosomes Answers

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