ATI TEAS PRACTICE TEST Science
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,1.
THE NEXT TWO QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A person with the T gene will be tall and a person the t gene will be short. A person with the B gene will have black
hair and a person the b gene will have red hair. Now consider the Punnet square below.
what are the characteristics of the person with genes from possibility 3?
A. short with black hair.
B. short with red hair
C. tall with black hair
D. tall with red hair.
D. The complete punnet square is shown bellow.
T. t
B TB. tB
b. Tb. tb
Possibility 3 corresponds to a person with the Tb gene combination, which means the person is tall with red hair.
,1.
THE NEXT TWO QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION.
Let B represent the dominant gene for a full head of hair, and let b represent the recessive gene for male pattern
baldness. The following Punnett square represents the offspring of two people with recessive genes for baldness.
According to the Punnett square, which selection includes all outcomes that would produce an offspring with
male pattern baldness?
A. Possibility 1.
B. Possibility 4.
C. Possibilities 1, 2, and 3
D. Possibilities 2, 3, and 4
B.
- because male pattern baldness is a recessive gene, the offspring would need the bb gene combination in order to
inherit this trait.
- Possibility 4 corresponds to the bb gene combination.
Complete Punnet square:
B. b
B. BB. Bb
b. Bb. bb
, 2.
THE NEXT TWO QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A person with the T gene will be tall and a person the t gene will be short. A person with the B gene will have black
hair and a person the b gene will have red hair. Now consider the Punnet square below.
Which possibility would produce a short offspring with black hair?
A. possibility 1
B. possibility 2
C. possibility 3
D. possibility 4
B. Possibility 2 corresponds to the tB pair of genes, which is short with black hair.