Question 1

The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Accepted Answer

A)   Privet shrub cells cannot reproduce sexually.
B)   Privet shrub sex cells have chromosomes that can synapse with human chromosomes in the laboratory.
C)   Genes of privet shrub chromosomes are significantly different than those in humans.
D)   Privet shrubs must be metabolically more like animals than like other shrubs.

Question 2

Refer to the information and figure below to answer the following questions.
A certain (hypothetical)  organism is diploid, has either blue or orange wings as the consequence of one of its genes on chromosome 12, and has either long or short antennae as the result of a second gene on chromosome 19, as shown in the figure.
 
-If a female of this species has one chromosome 12 with a blue gene and another chromosome 12 with an orange gene, and has both number 19 chromosomes with short genes, which of the following combinations of genes will her eggs have?

Accepted Answer

A)   only blue short gene eggs
B)   only orange short gene eggs
C)   one half blue short and one half orange short gene eggs
D)   three fourths blue short and one fourth orange short gene eggs

Question 3

During which of the following processes does independent assortment of chromosomes occur?

Accepted Answer

A)   in meiosis I only
B)   in meiosis II only
C)   in mitosis and meiosis I
D)   in mitosis and meiosis II

Question 4

In a human karyotype, chromosomes are arranged in 23 pairs. If we choose one of these pairs, such as pair 14, which of the following do the two chromosomes of the pair have in common?

Accepted Answer

A)   length and position of the centromere only
B)   length, centromere position, and staining pattern only
C)   length, centromere position, staining pattern, and traits coded for by their genes
D)   They have nothing in common except that they are X-shaped.

Exam 13: Meiosis and Sexual Life Cycles

During which of the following processes does independent assortment of chromosomes occur?

Correct Answer
verified

The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Correct Answer
verified

In a human karyotype, chromosomes are arranged in 23 pairs. If we choose one of these pairs, such as pair 14, which of the following do the two chromosomes of the pair have in common?

Correct Answer
verified

Correct Answer
verified

Exam 13: Meiosis and Sexual Life Cycles

During which of the following processes does independent assortment of chromosomes occur?

Correct AnswerverifiedShow Answer

The somatic cells of a privet shrub each contain a total of 46 chromosomes. How do the chromosomes of this plant differ from the chromosomes of humans, who also have a total of 46?

Correct AnswerverifiedShow Answer

In a human karyotype, chromosomes are arranged in 23 pairs. If we choose one of these pairs, such as pair 14, which of the following do the two chromosomes of the pair have in common?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified