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WorksheetsForms of Inheritance 2
Total questions: 10
Worksheet time: 16mins
Name
Class
Date
1.
When two or more genes control one single trait.
a)
Multiple Alleles
b)
Several Genes
c)
Polygenetic Traits
d)
Genotype
2.
In chickens feather color is controlled by codominance.
If a black chicken (BB) is crossed with a speckled (black and white) chicken (BW) what will be the phenotypes of the offspring?
If a black chicken (BB) is crossed with a speckled (black and white) chicken (BW) what will be the phenotypes of the offspring?
a)
100% speckled (black and white)
b)
50% speckled (black and white); 50% black
c)
75% white; 25% speckled (black and white)
d)
50% white; 50% black
3.
Mom is heterozygous for type A blood and Dad is homozygous for type B blood. What blood types are possible in their offspring?
a)
A, B, and AB
b)
AB and A
c)
AB and B
d)
Just B
4.
A red eyed female fruit fly XR XR is crossed with a white eyed male Xr Y. What are the phenotypes of the offspring?
a)
2 red eyed females; 2 red eyed males
b)
2 white eyed females; 2 red eyed males
c)
2 white eyed females; 2 white eyed males
d)
1 red eyed female; 1 white eyed female; 1 white eyed male; 1 red eyed male
5.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
6.
When neither trait of the parents is fully expressed. Happens with heterozygous combinations. A blending of two traits
a)
Gene Expression
b)
Co-Dominance
c)
Incomplete Dominance
d)
Phenotype
7.
Hemophilia is a sex-linked recessive trait found on the x chromosome. Complete a cross between a woman who has hemophilia and a normal man.
What are the chances of a child having hemophilia?
What are the chances of a child having hemophilia?
a)
100%
b)
75%
c)
50%
d)
25%
8.
In Andalusian fowls, black individuals (BB) and white individuals (bb) are homozygous. Heterozygous individuals are grey (Bb).
Cross a black fowl with a white fowl. What is the phenotype ratio?
Cross a black fowl with a white fowl. What is the phenotype ratio?
a)
4 black: 0 grey: 0 white
b)
2 black: 2 grey: 0 white
c)
0 black: 4 grey: 0 white
d)
0 black: 2 grey: 2 white
9.
In chickens, feather color is codominant. If a black chicken BB is mated with one that is black and white (BW) what are the chances of having a chicken that is black and white?
a)
50%
b)
0%
c)
25%
d)
100%
10.
Mom has type O blood, and dad has type AB. What is the probability of type AB in the children?
a)
0%
b)
25%
c)
50%
d)
100%
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