Genetics Quiz: Part 1 Question Preview (ID: 1498)


Review Mendel's Laws And How To Complete Punnet Squares. TEACHERS: click here for quick copy question ID numbers.

Why is Gregor Mendel important in Biology?
a) he discovered the structure of the DNA molecule
b) he discovered the effects of gravity
c) he discovered the role of dominant and recessive alleles in the inheritance of pea plants
d) he wrote many textbooks used in high school

Mendel crossed a heterozygous red flowered plant (Rr) with a homozygous white flowered plant (rr). What percentage of the offspring will have white flowers?
a) 0%
b) 30%
c) 50%
d) 100%

Mendel crossed a homozygous red flowered plant (RR) with a homozygous white flowered plant (rr). What percentage of the offspring had white flowers?
a) 0%
b) 30%
c) 50%
d) 100%

Mendel's first law, the law of segregation, states that only one allele can be represented in a gamete. What process makes sure that gametes only have one allele for a gene?
a) Mitosis
b) DNA Replication
c) Osmosis
d) Meiosis

Mendel crossed two heterozygous red flowered plants (Rr). What percentage of the offspring will have red flowers?
a) 0 %
b) 50%
c) 75%
d) 100%

Mendel's second law states that alleles of different genes separate randomly. In which PHASE of meiosis do homologous chromosomes line up randomly in the middle of the cell?
a) Prophase I
b) Metaphase I
c) Prophase II
d) Metaphase II

What do punnet squares show?
a) The possible genotypes of offspring
b) The possible DNA sequence for offspring
c) A physical picture of the organism
d) The formation of gametes

Mendel crossed two homozygous red flowered plants (RR). What percentage of the offspring will have red flowers?
a) 0%
b) 50%
c) 75%
d) 100%

In genetic crosses, there are always an equal number of phenotypes and genotypes.
a) True
b) False
c) Sometime True
d) Not enough information to answer this question

Ms. Larson has blue eyes, a recessive trait (bb). Which of the following could be the genotypes of Ms. Larson's parents?
a) BB x bb
b) BB x Bb
c) Bb x bb
d) BB x BB

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