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What I Know

Science 9

1. What is known as the universal blood donor?

A. blood type AB
B. blood type o
C. blood type A
D. blood type B

2. What is the phenotype of the genotype ii?

A. blood type A
B. blood type B
C. blood type AB
D. blood type o

3. How many alleles affect the expression of human blood types?

A. 2
B. 3
C. 4
D. 5

4. Which of the following alleles is recessive?

Α. IA
B.IB
C.i
D. None of these

5. Which of the following pair of sex chromosomes is found in a female
human?

A. XX
B. XY
C. YY
D. None of these

6. What is the genotype for a woman who is bald?

A. XYBb
B. XYbb
C. XXbb
D. XXBB

7. What is the genotype for a man who is color-blind?
А. ХҮс
B. XY
C. XcYc
D. XX

8. Which of the following is an example of an X-linked trait in human?

A. pattern baldness
C. hypertrichosis
B. hemophilia
D. lactation

9. If a couple has blood type 0, what could be the blood type(s) of their
children?

A. type B and O
B. type O only
C. type A and O
D. type AB

10. Red-green color blindness is a recessive sex-linked trait. A colorblind
male marries a female who is a carrier of the trait. Will they have a color-
blind son?

A. Yes
B. No
C. Cannot be determined

Pa sagot naman ​

Sagot :

SARAH029

Answer:

What I Know

Science 9

1. What is known as the universal blood donor?

  • A. blood type AB

2. What is the phenotype of the genotype ii?

  • A. blood type A

3. How many alleles affect the expression of human blood types?

  • A. 2

4. Which of the following alleles is recessive?

  • D. None of these

5. Which of the following pair of sex chromosomes is found in a female

human?

  • B. XY

6. What is the genotype for a woman who is bald?

  • C. XXbb

7. What is the genotype for a man who is color-blind?

  • А. ХҮс

8. Which of the following is an example of an X-linked trait in human?

  • D. lactation

9. If a couple has blood type 0, what could be the blood type(s) of their

children?

  • D. type AB

10. Red-green color blindness is a recessive sex-linked trait. A colorblind

male marries a female who is a carrier of the trait. Will they have a color-

blind son?

  • C. Cannot be determined
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