Punnett Square Unit Bio test UPDATED
ACTUAL Exam Questions and CORRECT
Answers
All individuals have two alleles for a given trait. According to Mendel's Law of Segregation,
these alleles are passed down one each from both mother and father.
They are passed down through gametes from each parent, which are created by the process
known as _________. - CORRECT ANSWER - meiosis
In a given hybridization between two flowers, red "R" is dominant, and white "r" is recessive. In
a cross between two white-flowered plants, all of the offspring had white flowers. If a plant
grower wanted to produce red flowers, what should s/he consider during breeding? - CORRECT
ANSWER - The breeder must introduce at least one parent that is heterozygous for red
flowers.
In rabbits, the allele for black fur, B, is dominant over the allele for brown fur, b.
Calculate the probability of a homozygous dominant (BB) offspring resulting from a cross
between two parents with the genotype Bb. - CORRECT ANSWER -1
4
Both male and female gametes are created during the process of meiosis. The formation of male
gametes or sperm is called spermatogenesis. After telophase II of spermatogenesis, there would
be __________ male gametes created that are all genetically __________. - CORRECT
ANSWER - 4; different
In sexually reproducing organisms, genes are transferred via _______________? - CORRECT
ANSWER - egg and sperm
ACTUAL Exam Questions and CORRECT
Answers
All individuals have two alleles for a given trait. According to Mendel's Law of Segregation,
these alleles are passed down one each from both mother and father.
They are passed down through gametes from each parent, which are created by the process
known as _________. - CORRECT ANSWER - meiosis
In a given hybridization between two flowers, red "R" is dominant, and white "r" is recessive. In
a cross between two white-flowered plants, all of the offspring had white flowers. If a plant
grower wanted to produce red flowers, what should s/he consider during breeding? - CORRECT
ANSWER - The breeder must introduce at least one parent that is heterozygous for red
flowers.
In rabbits, the allele for black fur, B, is dominant over the allele for brown fur, b.
Calculate the probability of a homozygous dominant (BB) offspring resulting from a cross
between two parents with the genotype Bb. - CORRECT ANSWER -1
4
Both male and female gametes are created during the process of meiosis. The formation of male
gametes or sperm is called spermatogenesis. After telophase II of spermatogenesis, there would
be __________ male gametes created that are all genetically __________. - CORRECT
ANSWER - 4; different
In sexually reproducing organisms, genes are transferred via _______________? - CORRECT
ANSWER - egg and sperm
