Semester exam preparation - Chapter 11 Questions

Different forms of a gene are called

• Hybrids

• dominant factors

• alleles

• recessive factors

Organisms that have two identical alleles for a particular trait are said to be

• hybrid

• heterozygous

• homozygous

• dominant

A Punnett square is used to determine the

• probable outcome of a cross.

• actual outcome of a cross.

• result of incomplete dominance.

• result of meiosis.

The physical characteristics of an organism are called its

• genetics

• heredity

• phenotype

• genotype

A situation in which a gene has more than two alleles is known as

• complete dominance

• codominance

• polygenic dominance

• multiple alleles

A pink flowered Mirabilis plant (RW) is crossed with a white flowered Mirabilis (WW). What is the chance that a seed from this cross will produce a red flowered plant?

• 0

• 1/4

• 1/2

• 1

Unlike mitosis, meiosis in male mammals results in the formation of

• one haploid gamete.

• three diploid gametes.

• four diploid gametes.

• four haploid gametes.

If an organism has the diploid number 2N = 8, what is the haploid number?

• 16

• 4

• 6

• 3

What happens to the chromosome number during meiosis?

• It doubles

• It stays the same

• It halves

• It becomes diploid

During which phase of meiosis is the chromosome number reduced?

• Anaphase I

• Metaphase I

• Telophase I

• Telophase II