Genetics Review

Match the terms to the definition

• The study of heredity

• Genetics

• Genes for different traits can segregate independently during the formation of gametes

• Independent Assortment

• Separation of alleles during gamete formation

• Polygenic Traits

• Traits controlled by two or more genes

• Segregation

• When neither allele is dominant over the other and the phenotype is a mixture of the two alleles

• Incomplete Dominance

Different forms of a gene are called

• Hybrids

• Dominant factors

• Alleles

• Recessive factors

A Punnett square is used to determine

• Probable outcomes of a cross

• Actual outcome of a cross

• Result of mitosis

• Result of meiosis

What would be the dimensions of a Punnett square for the cross Ww x ww?

• 4x4

• 2x1

• 2x2

• 2x3

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

• Hybrid

• Heterozygous

• Homozygous

• Dominant

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

• Complete dominance

• Codominance

• Polygenic dominance

• Multiple alleles

Two pink flowering plants are crossed. The offspring flower as follows: 25% red, 25% white, and 50% pink. What pattern of inheritance do the flowers follow?

• Dominance

• Multiple alleles

• Incomplete dominance

• Polygenic traits

Having two different alleles for a given gene

• Phenotype

• Heterozygous

• Genotype

• Homozygous

The physical characteristics of an organism

• Phenotype

• Genotype

• Multiple alleles

• Polygenic traits

The genetic makeup of an organism

• Phenotype

• Genotype

• Multiple alleles

• Polygenic traits