Genetic Inheritance

Question 1

Incomplete Dominance

Answer 1

2 alleles are expressed to create a blending that results in a third phenotype

Question 2

Codominance

Answer 2

2 alleles are expressed separately to give different traits to an individual

Question 3

X-Linked Crosses

Answer 3

Traits controlled by genes on the x chromosome (found more commonly in males)

Question 4

Recessive Gene

Answer 4

-A trait expressed when the the genotype is homozygous
-It is masked by other inherited traits

Question 5

Dominant Gene

Answer 5

-A trait expressed when the genotype is homozygous or heterozygous
-The dominant gene is expressed more strongly than the recessive gene

Question 6

What is a genotype

Answer 6

The genetic make up of an individual

Question 7

What is a phenotype

Answer 7

The physical appearance of an individual

Question 8

What are alleles

Answer 8

2 genes that code for the same trait in the same location (on homologous chromosomes)

Question 9

Single Trait Crosses

Answer 9

A cross between two individuals but only one trait is observed

Question 10

Double Trait Crosses

Answer 10

A cross between two individuals while two different traits are observed

Question 11

Monohybrid

Answer 11

A cross between individuals that are heterozygous for the same trait (Bb x Bb)

Question 12

Dihybrid

Answer 12

A cross between individuals that are heterozygous for two traits (BbTt x BbTt)

Question 13

Function of Genes

Answer 13

-To give a certain trait to an individual
-A gene from each parent code for the same trait but only one is observed

Question 14

What is a Test Cross

Answer 14

A cross between an individual with an unknown genotype and a homozygous recessive (F? x ff)

Question 15

Purebred

Answer 15

Gene pairs that share the same trait (homozygous)

Question 16

Hybrid

Answer 16

Gene pairs that have different traits (heterozygous)