Post Test
Write “T" if the statement is true and "F" if the statement is false.
1. Sex-linked diseases mainly affect males because they only have one copy of
the X chromosome.
2. Sex-linked traits are characteristics determined by genes located on sex
chromosomes,
3. Multiple alleles occur when traits are controlled by more than two alleles.
4. Humans have a total of 23 pairs of chromosomes.
5. Hemophilia is any hereditary or genetic bleeding disorders that impair blood
clotting, a mechanism that prevents excessive blood loss when blood vessels
are injured.
6. An individual's ABO blood type is normally determined by environmental
factors
7. Colorblindness and hemophilia are examples of sex-linked disorders that are
Y-linked recessive trait.
8. Colorblindness is an abnormal condition characterized by the inability to see
different colors in the spectrum.
9. The genotypes of blood type A are lᴬlᴬand Iᴬi
.
10. If a heterozygous blood type A father is married to a heterozygous blood type
B mother, their children's possible blood types are A, B, AB and O.
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Answer:
1.T
2.T
3.T
4.T
5.T
6.F
7.F
8-10 T
Answer:
1. T
2. T
3. T
4. T
5. T
6. F
7. F
8. T
9. T
10. T
Explanation:
I will only explain the false statement
The number 6 is false because the statement states normally factors
The number 7 is false because it occurs in X- Linked trait
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