WorksheetsInheritance Patterns
Total questions: 40
Worksheet time: 27mins
Name
Class
Date
1.
1. In a certain species of animal, black fur (B) is dominant over tan fur (b).
Which type of dominance does this cross show?
Which type of dominance does this cross show?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
2.
Snapdragon flowers come in red, pink and white. What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
3.
If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed-what percentage of the offspring would be homozygous white?
a)
0%
b)
25%
c)
50%
d)
75%
4.
If a Homozygous red snapdragon and a Heterozygous pink snapdragon were crossed-what percentage of the offspring would be homozygous red?
a)
0%
b)
25%
c)
50%
d)
75%
5.
What type of inheritance do two alleles have if their traits blend together?
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
6.
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
7.
Which of the following statements is true regarding blood types?
a)
A and O are codominant, B is recessive.
b)
B and O are codominant, A is recessive.
c)
A and B are codominant, O is recessive.
d)
A , B and O are all codominant with each other.
8.
True or False: Men can NEVER be "carriers" for recessive sex-linked traits because they only have one X chromosome.
a)
True
b)
False
9.
A red lily crossed with a yellow lily produces heterozygous orange lily flowers. This is an example of which type of inheritance?
a)
Codominance
b)
Incomplete Dominance
c)
Sex Linked
d)
Polygenic Trait
10.
A yellow fish, when crossed with a blue fish, produces heterozygous fish with blue AND yellow scales. This is an example of which type of inheritance?
a)
Sex Linked
b)
Polygenic
c)
Codominance
d)
Incomplete Dominance
11.
If the heterozygous genotype leads to a BLEND of the other two traits, this is an example of ______________.
a)
Incomplete Dominance
b)
Codominance
c)
Multiple Alleles
d)
Polygenic Inheritance
12.
A heterozygous condition in which BOTH alleles are equally expressed is an example of _________________.
a)
Codominance
b)
Incomplete Dominance
c)
Polygenic Inheritance
d)
Multiple Alleles
13.
Phenotypes which result as a combination of MANY genes, such as skin color and eye color, are known as ______________ traits.
a)
Monogenic
b)
Dihybrid
c)
Multiple Allele
d)
Polygenic
14.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
15.
If a trait is controlled by one gene, but there are 4 possible alleles, the inheritance pattern is called...
a)
dominance
b)
sex-linked
c)
multiple alleles
d)
polygenic
16.
The range of human skin colors is caused by a variety of genes, each of which has at least 2 alleles. This is an example of:
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
polygenic inheritance
17.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
18.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
19.
If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!
a)
All sons will have hemophilia
b)
all daughters will have hemophilia
c)
50% of daughters and 50% of sons have hemophilia
d)
100% of sons have hemophilia and 100% of daughters are carriers
20.
Tallness (T) is dominant to shortness (t) in pea plants. Which of the following represents a genotype of a pea plant that is heterozygous for tallness?
a)
T
b)
TT
c)
Tt
d)
tt
21.
In peas, yellow seeds (Y) are dominant to green seeds (y). If a homozygous green plant is crossed with a yellow seeded plant whose mother had green seeds, what percent of the offspring will be green?
a)
0%
b)
25%
c)
50%
d)
100%
22.
In guinea pigs, black fur (B) is completely dominant to white fur (b). A black guinea pig is crossed with a white guinea pig. Half of their offspring are white and half are black. What is the genotype of the black guinea pig parent?
a)
BB
b)
Bb
c)
bb
23.
A brown-eyed man marries a blue-eyed woman. Blue eyes are recessive (b). The first child is brown-eyed. What is the man's genotype for eye color?
a)
BB
b)
Bb
c)
bb
d)
It cannot be determined
24.
Which types of gametes would be produced by a plant of the genotype TtRr?
a)
Tt and Rr
b)
TR and tr
c)
TR, Tr, tR, and tr
d)
Tt, Rr, TT, and RR
25.
A cross between Red Reebops (an organism that feeds off the blood of cute, furry puppies) and White Reebops produced Pink Reebops. What type of inheritance pattern just occurred here?
a)
Codominance
b)
Complete Dominance
c)
Incomplete Dominance
d)
Epistasis
26.
Concerning the Multiple Allele System of blood type alleles, ABO, a woman has type A blood and is heterozygous for the trait. What is her genotype?
a)
A
b)
AA
c)
AO
d)
AB
27.
A mother of blood type A and a father of blood type B had a child of type O. It is apparent that:
a)
The hospital gave them the wrong infant
b)
Both parents were heterozygotes
c)
The father is homozygous B
d)
The mother is homozygous A
28.
Color-blindness in humans is a sex-linked trait carried on the X chromosome. XC represents the gene for color-blindness. It is recessive. If a homozygous normal female and a color-blind male get married, what percentage of their sons will be color-blind, on average?
a)
0%
b)
25%
c)
50%
d)
100%
29.
Color-blindness in humans is a sex-linked trait carried on the X chromosome. XC represents the gene for color-blindness. It is recessive. A woman is color-blind and marries a normal man. She gets pregnant and learns that it will be a boy. What is the chance that he will be color-blind?
a)
25%
b)
50%
c)
75%
d)
100%
30.
Color-blindness in humans is a sex-linked trait carried on the X chromosome. XC represents the gene for color-blindness. It is recessive. If a color-blind male marries a woman who is not color-blind but who carries the allele, what percentage of their SONS would be color-blind?
a)
25%
b)
50%
c)
75%
d)
100%
31.
A cross between a brown cow and a white cow produces a roan (brown and white together) pattern. What percent of calves would have roan fur if a roan cow is crossed with a brown cow?
a)
0%
b)
25%
c)
50%
d)
100%
32.
What type of phenotype is controlled by many genes?
a)
Incomplete Dominance
b)
Complete Dominance
c)
Epistasis (Polygenic Inheritance)
d)
Pleiotropy
33.
What is the term for one gene affecting many phenotypic traits, as seen in Marfan Syndrome?
a)
Epistasis (Polygenic Inheritance)
b)
Pleiotropy
c)
Cross-Breeding
d)
True-Breeding
34.
Which statement is true considering an autosomal dominant pattern of inheritance?
a)
Someone with a dominant allele will exhibit the defect
b)
Someone with a recessive allele will exhibit the defect
c)
Only someone heterozygous can exhibit the defect
d)
Autosomal dominance is something that big-brained scientists decided to make up to impress some other big-brained scientists
35.
Albinism works using an autosomal recessive inheritance pattern. A man with albinism married a woman with albinism. What is the probability that a child will be born WITHOUT albinsism?
a)
There is not enough information
b)
50%
c)
100%
d)
0%
36.
In Andalusian fowls, black individuals (B) and white individuals (b) are homozygous. A homozygous black bird is crossed with a homozygous white bird. The offspring are all bluish-gray. If a bluish-gray male mated with another bluish-gray female, what is the probability that the first offspring fowl will be black, the second will be bluish-gray, and the third will be white IN THAT ORDER?
a)
1/4
b)
1/16
c)
1/8
d)
1/32
37.
What is the probability that parents with the genotype aaBbCC and AABbCc will produce offspring that is AaBbCc
a)
1/2
b)
1/4
c)
1/8
d)
1/16
38.
Non-Disjunction can lead to Monosomy and Trisomy which are examples of
a)
Aneuploidy
b)
Duplication
c)
Deletion
d)
Translocation
39.
A change in a chromosome in which a broken piece gets reattached in the wrong location is the definition of
a)
Duplication
b)
Deletion
c)
Inversion
d)
Translocation
40.
If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!
a)
All sons will have hemophilia
b)
all daughters will have hemophilia
c)
50% of daughters and 50% of sons have hemophilia
d)
100% of sons have hemophilia and 100% of daughters are carriers
100 %
