Chapter 4 Review

Gregor Mendel used pea plants to study hereditary for all the following reasons except?

When Mendel crossed purebred pea plants having green pods with purebred pea plants having yellow pods the offspring were all?

A cross between purebred peas with inflated pods and purebred peas with pinched pods resulted in peas with all inflated pods. What is the recessive trait?

Which of the following is not one of Mendel’s three principles of hereditary? A. In a cross of purebred parents all offspring will show the dominant trait. B. In a cross of hybrid parents all offspring will also be hybrid. C. Two alleles for a parents genes separate and then each combines with an allele from the other parent to determine the offspring trait. D. Each allele is passed to the offspring independently of the other alleles.

Alleles for a dominant trait or represented with what kind of letters?

Which of the following is a phenotype? A. Bb B. Black fur C. A pea plant D. a Punnett square

A Tt plant is covered with a tt plant. What genotype(s) would you expect the offspring to have? A. all Tt B. all tt C some Tt and some tt D. some TT, some Tt, and some tt

If a father is purebred for the dominant trait of dimples (DD) and a mother is purebred for not having dimples (dd) then you should expect the couples children to what?

Which of the following is an example of code dominance? A. A pink snapdragon flower color B. Crossing a tall plant and a short plant to produce a medium plant C. Crossing a pea plant with round seeds and a pea plant with wrinkled seeds to produce a pea plant with round seeds D. crossing a white horse and a black horse to produce a horse with both black hairs and white hairs

Which of the following is an example of multiple alleles? A. Depending on the interaction of two gene, labrador retrievers can be black, brown, or yellow. B. the gene that controls fur color and rabbits has four different alleles C. Human eye colors controlled by up to 16 different jeans D. a red Bull cross with a white cow produces a roan calf

If one parent contributes NIA all and the other parent contributes an IB alle their child will have which blood type? A. A B. B C. AB D. O

Genetic drift would most likely occur in which of the following populations? A. a greenhouse of snap dragons B. an orchard with thousands of orange trees C. A pea plant farm D. a petting zoo with a dozen pygmy goats

A population of foxes migrate into a desert region. The number of foxes with larger ears is most likely to? A. increase B. decrease C. Remain the same D. change randomly

What is the process by which organisms with certain adaptation survive to pass on their traits to a greater number of offspring? A. artificial selection B. genetic drift C. Natural selection D. population genetics

True or false According to Mendel’s research a dominant trait is hidden by a presence of a recessive trait.

True or false A plant that follows simple dominance and has a genotype of Tt would exhibit the dominant trait.

True or false Different forms of genes that result in different traits are known as alleles.

True or false An organisms genotype determines its phenotype.

True or false The number of boxes in a Punnett square with hybrid genotypes tells you exactly how many hybrid offspring will be produced.

True or false Some characters do not follow Mendel’s principles of heredity.

True or false Skin color height and intelligence are controlled by a single gene.

True or false Natural selection has the potential to produce the variety of dogs that we see today.

True or false Natural selection has been observed to create new kinds of organisms.

True or false Natural selection cannot create new genetic information it can only remove genetic information from a population.