Bellringer 14.2 biology

Question 1

the percentage of twins who both express a given trait called ________________rate.

Answer 1

concordance

Question 2

a large difference between the concordance rates of __________and________twins shows a strong genetic influence.

Answer 2

Fraternal, identical

Question 3

parents who are not colorblind have a son that is red-green colorblind because mom was__________.

Answer 3

Carrier

Question 4

White flowered plants crossed with red flowered plants produce pink plants is an example of _____________ dominance.

Answer 4

incomplete

Question 5

23 pairs of human chromosomes contain one_______ chromosome pair and 22______pairs.

Answer 5

sex, autosomes

Question 6

inefficient __________transportation is the effect of sickle-cell anemia.

Answer 6

hemoglobin

Question 7

gametes, chromosomes, and meiosis play a role in determining an individual’s_______.

Answer 7

Sex

Question 8

A normal human female would exhibit an _________chromosome.

Answer 8

XX

Question 9

polygenic inheritance are traits controlled by______ or more genes, like skin color.

Answer 9

2

Question 10

__________is a recessive, sex-linked disorder common to males.

Answer 10

X-linked traits