18 questions
Different types of _______ inheritance patterns include incomplete dominance, co-dominance, multiple alleles, polygenic, and sex-linked.
Non-Mendelian
Mendelian
The alleles of a gene pair in a heterozygote are both expressed with no blending.
codominance
incomplete dominance
polygenic
multiple alleles
A trait associated with a gene that is carried on the X or Y chromosome.
sex linked
polygenic
multiple alleles
codomiance
Which statement is true about X-linked genes?
The male needs two copies of the gene but will express the trait regardless of whether the alleles are dominant or recessive.
The male needs two copies of the gene but will express the trait only if both alleles are dominant.
The male needs only one copy of the gene and will express the trait regardless of whether the allele is dominant or recessive.
The male needs only one copy of the gene but will express the trait only if the allele is dominant.
Neither allele is dominant. Heterozygote has a blended phenotype.
incomplete dominance
codominance
multiple alleles
sex linked
Trait determined by more than one gene, sometimes hundreds of genes.
polygenic
multiple alleles
codominant
sex linked
Polygenic inheritance is very common in determining characteristics that are
Qualitative in nature.
Quantitative in nature.
Primarily hidden.
simple Mendelian traits
Three or more alternative forms of a gene that can occupy the same locus.
multiple alleles
codominant
polygenic
incomplete dominance
Based on the data on human height, it is reasonable to conclude that height is an example of a(n) ________ trait.
polygenic
codominant
x-linked
multallelic
Choose all that apply.
Eye color is a trait coded by there separate genes and three different alleles (brown, green, blue). What type of inheritance pattern is eye color?
X- Linked
Multiple alleles
Polygenic
Incomplete dominance
Check all that apply.
Human ABO blood type is a _________ trait.
multiallelic
polygenic
codominant
X-linked
Do a Punnett Square.
A heterozygous type A parent reproduces with a heterozygous type B parent. Which correctly describes the probability of blood type in their offspring?
25% Type A, 25% Type B
25% Type AB, 25% Type O
50% Type A
50% Type B
25% Type A, 25% Type B
50% Type AB
50% Type AB
50% Type O
Do a Punnett Square.
Two parents with type AB blood reproduce. What is true of this genetic cross?
50% type O : 50% type AB
50% type B : 50% type A : 25% type O
25% type AB : 50% type B : 25% type A
50% type AB : 25% type A : 25% type B
Do a Punnett Square.
A roan cow shows codominance in fur color (red and white). What is the phenotype ratio expected if a roan cow and a white cow reproduce?
1 Red : 1 Roan
1 White : 1 Roan
1 Red : 1 White
1: Red : 2 Red and White : 1 White
Do a Punnett Square.
In a certain breed of chicken, feather color follows an incomplete dominance pattern. A heterozygous chicken is known as an Andalusian blue.
When a blue rooster mates with a black hen, what is the predicted probability for their offspring?
100% Blue
50% Blue, 25% White, 25% Black
50% Black, 50% Blue
50% White, 50% Black
Do a Punnett Square.
In a cross between a white-eyed female fruit fly and a red-eyed male, what percent of the male offspring will have white eyes? (White eyes are X-linked and are recessive.)
0%
50%
100%
Impossible to tell
Do a Punnett Square.
Hemophilia is an X-linked recessive trait. If a female carrier for hemophilia marries a normal male. If they produce a son, what are the chances he will have hemophilia?
100%
50%
0%
Impossible to tell