Bio 103 - Chapter 14 (2) - Pharmacgy
15 Questions
| Total Attempts: 28
.
Questions and Answers
- 1.What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants?
- A.
There is a considerable genetic variation in garden peas
- B.
Traits are inherited in discrete units, and are not the results of “blending”
- C.
Recessive genes occur more frequently in the F1 generation
- D.
Genes are composed of DNA
- 2.Which of the following is an example of testcross?
- A.
Hh x hh
- B.
Hh x Hh
- C.
Hh x hh
- D.
Hh x hh
- 3.To determine the genotype of an organism with a dominance phenotype, we could perform:
- A.
Monhybrid cross
- B.
Test cross
- C.
Dihybrid cross
- D.
We can’t determine
- 4.Suppose two individuals with the genotype AaBbCc are mated. Assuming that the genes are not linked, what fraction of the offspring are expected to be homozygous recessive for the three traits?
- A.
1/4
- B.
1/8
- C.
1/16
- D.
1/64
- 5.Albinism is a recessive trait. A man and woman both show normal pigmentation, but both have one parent who has albinism (without melanin pigmentation). What is the probability that their first child will have albinism?
- A.
0
- B.
1/2
- C.
1/4
- D.
1
- 6.When red flower mates white flower, the F1 individuals are pink, what is the type of dominance here?
- A.
Incomplete dominance
- B.
Multiple alleles
- C.
Pleiotropy
- D.
Epistasis
- 7.In Tay-Sachs disease, what is the type of dominance at organismal level?
- A.
Incomplete dominance
- B.
Multiple alleles
- C.
Complete dominance
- D.
Epistasis
- 8.Which of the following is considered as quantitative character?
- A.
Skin pigmentation
- B.
ABO system
- C.
Sickle-cell anemia
- D.
Tay-sachs
- 9.How many genotypes and phenotypes does the ABO system has?
- A.
4-6
- B.
6-4
- C.
4-4
- D.
6-6
- 10.Mendel used the scientific approach to identify two laws of inheritance:
- A.
True
- B.
False
- 11.Alternative versions of genes are called phenotype
- A.
True
- B.
False
- 12.A genotype is the genetic makeup of a trait
- A.
True
- B.
False
- 13.Inheritance patterns are often more complex than predicted by simple Mendelian genetics
- A.
True
- B.
False
- 14.The MN phenotype is intermediate between M and N phenotypes:
- A.
True
- B.
False
- 15.Tag-Sachs disease is an inherited disorder in humans:
- A.
True
- B.
False
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