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WorksheetsInheritance
Total questions: 45
Worksheet time: 44mins
Name
Class
Date
1.
What is the definition of Homozygous?
a)
When one allele is dominant and one is recessive
b)
When an individual has two sets of the same allele.
c)
when it is neither dominant or recessive
2.
What is the definition of heterozygous?
a)
when an individual has two sets of the same allele
b)
when it is neither dominant or recessive
c)
A pair of genes where one is dominant and one is recessive.
3.
The genotype is the ______________.
a)
physical appearance
b)
Genetic makeup
c)
Alleles gained from one parent
4.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
5.
The passing of characters from parents to offspring is called?
a)
Monohybrid cross
b)
Heredity
c)
True breeding
d)
Genetics
6.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
7.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
8.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
9.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
10.
Each parent contributes one of the genes for a particular trait. The genes of the pair are called:
a)
variables
b)
gametes
c)
hybrids
d)
alleles
11.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
12.
Variations of a trait are __________________.
a)
genes
b)
chromosomes
c)
hybrids
d)
alleles
13.
The Law of Segregation states:
a)
alleles are inherited together
b)
alleles separate during gamete formation
c)
only dominant genes are inherited
14.
The Law of Independent Assortment states:
a)
most genes are inherited together
b)
only dominant genes are inherited
c)
recessive genes can never be expressed
d)
genes that control different characteristics are inherited separately and are not related
15.
AB blood type is an example of what type of inheritance?
a)
complete dominance
b)
incomplete dominance
c)
codominance
d)
polygenic inheritance
16.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
17.
The man who studied and came up with the principles of genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
18.
If a heterozygous tall pea plant is crossed with a short pea plant, what are the possible genotypes of the future offspring?
a)
100% Tt
b)
50% Tt, 50% tt
c)
75%Tt, 25%tt
d)
25%TT, 50%Tt, 25%tt
19.
Which of the following cell types is formed by meiosis?
a)
muscle cells
b)
skin cells
c)
sperm cells
d)
blood cells
20.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
21.
What fraction of offspring from the cross AaBB x Aabb will be heterozygous for both traits?
a)
1/16
b)
4/16
c)
8/16
d)
3/16
22.
There are many variations in skin color that can be inherited based on the combination of alleles that you inherit from your mom and dad. This bell curve distribution is an example of
a)
incomplete dominance
b)
codominance
c)
blocked traits
d)
polygenic inheritance
23.
If you cross a black chicken with a white chicken, only checkered chickens would be produced. What kind of inheritance pattern does this follow?
a)
incomplete Dominance
b)
Co-Dominance
c)
polygenic trait
d)
blocked trait
24.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
25.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
26.
When two or more genes control one single trait.
a)
Multiple Alleles
b)
Several Genes
c)
Polygenetic Traits
d)
Genotype
27.
A and B blood types are
a)
sex linked
b)
incomplete alleles
c)
co dominant alleles
28.
O blood type is
a)
dominant
b)
recessive
29.
A __________ is a segment of DNA that codes for a particular protein, which leads to a particular trait.
a)
Gene
b)
Allele
c)
Codon
d)
Nucleotide
30.
Which of the following best describes a GENOTYPE?
a)
The allele/genetic makeup of an organism.
b)
The physical expression of a trait.
31.
The letters on the TOP AND SIDE of a punnett square represent ______________.
a)
The combination of alleles in offspring.
b)
The possible alleles given by the parents following meiosis.
c)
The genotype and phenotype of offspring.
d)
The results of genetic mutations in offspring.
32.
What is another name for heterozygous?
a)
Hybrid
b)
Purebred
c)
Codominant
d)
Mixed Breed
33.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
34.
What goes in box 15
a)
abab
b)
ABAB
c)
aBaB
d)
AbAb
35.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
36.
what is genotypic ratio of incomplete dominance
a)
1:2:1
b)
3:1
c)
1:3:1
d)
16:1
37.
function of dominant gene is
a)
produce functional protein
b)
produce non functional protein
c)
produce less functional protein
d)
produce no protein
38.
Multiple allelism is shown by
a)
ABO Blood
b)
AB blood
c)
SICKLE CELL ANAEMIA
d)
HAEMOPHILIA
39.
When is a recessive allele expressed in offspring?
a)
when two copies are present
b)
when parents have no dominant alleles
c)
when the offspring is heterozygous
d)
when one copy is present
40.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
41.
many genes determine 1 trait
a)
True Breeding
b)
Polygenic Trait
c)
Mendelian trait
d)
Multiple alleles
42.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
43.
The term for all the genes that make up an organism.
a)
Gene pool
b)
Evolution
c)
Heterozygous
d)
Genome
44.
Any change in the gene pool over time is known as:
a)
genome
b)
mutation
c)
evolution
d)
sexual selection
45.
Sexual reproduction increases
a)
genetic variation
b)
mutations
c)
disorders
d)
genetic isolation
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