Test Bank for HDEV (4th Edition) by Spencer A. Rathus – Complete Exam Resource with Graded A Answers

THE Test Bank for HDEV 4th Edition Rathus
1 : The science of heredity is called
"eugenics." A : true
B : false

Correct Answer : B

2 : Each cell in our body contains 26
chromosomes. A : true
B : false

Correct Answer : B

3 : Genes are the biochemical materials that regulate the
development of traits. A : true
B : false

Correct Answer : A

4 : DNA takes the form of a double helix, or twisting ladder, is made up of
base pairs, and determines how the organism will develop.
A : true
B:
false

Correct Answer : A

5 : After mitosis, a cell has 23 pairs of
chromosomes. A : true
B : false

Correct Answer : A

6 : Polygenic traits are transmitted by a single pair
of genes. A : true
B : false

Correct Answer : B

7 : Sex chromosomes utilize meiosis to
divide. A : true
B : false

Correct Answer : A

8 : The typical sex chromosome pattern for
females is XY. A : true
B : false

Correct Answer : B

,9 : Monozygotic twins are conceived from separate egg cells.

,A:
true B
: false

Correct Answer : B

10 : Huntington disease is a fatal, progressive degenerative disorder and a
recessive trait. A : true
B : false

Correct Answer : B

11 : "Carriers" for traits have two recessive genes for
those traits. A : true
B : false

Correct Answer : B

12 : Type A blood is a recessive
trait. A : true
B : false

Correct Answer : B

13 : PKU is transmitted by a dominant
gene. A : true
B : false

Correct Answer : B

14 : Genetic counselling is used only prior to a woman getting
pregnant. A : true
B : false

Correct Answer : B

15 : Our phenotype is influenced by the
environment. A : true
B : false

Correct Answer : A

16 : Parents and children have 25% overlap in
genes. A : true
B : false

Correct Answer : B

17 : Low sperm count is the most common infertility
problem in men. A : true
B : false

, Correct Answer : A