Chapter 5

Question 0

Dominant

Answer 0

Describes a trait that covers over, or dominates, another form of that trait.

Question 1

Allele

Answer 1

An alternate form that a gene may have for a single trait; can be dominant.

Question 2

Genetic Engineering

Answer 2

Biological and chemical methods to change the arrangement of a gene’s DNA to improve crop production, produce large volumes medicine, and change how cells perform their normal functions.

Question 3

Genetics

Answer 3

The study of how traits are inherited through the actions of alleles.

Question 4

Genotype

Answer 4

The genetic makeup of an organism.

Question 5

Heredity

Answer 5

The passing of traits from parent to offspring.

Question 6

Heterozygous

Answer 6

Describes an organism with two different alleles for a trait.

Question 7

Homozygous

Answer 7

Describes an organisms with two alleles that are the same for a trait.

Question 8

Hybrid

Answer 8

An offspring that was given different genetic information for a trait from each parent.

Question 9

Incomplete Dominance

Answer 9

Production of phenotype that is intermediate between the two homozygous parents.

Question 10

Phenotype

Answer 10

Outward physical appearance and behavior of an organism as a result of its genotype.

Question 11

Polygenic Inheritance

Answer 11

Occurs when a group of gene pairs acts together and produces a specific trait, such as a human eye color, skin color, or height.

Question 12

Punnett Square

Answer 12

A tool to predict the probability of certain traits in offspring that shows the different ways alleles can combine.

Question 13

Recessive

Answer 13

Describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear.

Question 14

Sex-linked Gene

Answer 14

An allele inherited on a sex chromosomes and that can cause human genetic disorders such as color blindness and hemophilia.