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WorksheetsGenetics
Total questions: 39
Worksheet time: 40mins
Name
Class
Date
1.
What is this called the principle, originated by Gregor Mendel, stating that when two or more characteristics are inherited, individual hereditary factors assort independently during gamete production, giving different traits an equal opportunity of occurring together.
a)
heredity
b)
meiosis
c)
The law of independent assortment
d)
trait
2.
a)
Co-dominance
b)
Blocked gene
c)
Sex-linked
d)
Incomplete dominance
3.
This diagram represents what type of inheritance pattern?
a)
sex-linked inheritance
b)
complete dominance
c)
codominance
d)
incomplete dominance
4.
If this image were real, it would represent what type of inheritance?
a)
incomplete dominance
b)
codominance
c)
polygenic inheritance
d)
compete dominance
5.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
6.
What is the diploid number in human cells?
a)
2
b)
23
c)
46
d)
92
7.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
8.
If the dominant allele (B) represents brown hair and the recessive allele (b) represents blonde hair, which offspring represents a homozygous recessive genotype?
a)
BB
b)
Bb
c)
blonde
d)
bb
9.
What is the definition of Homozygous?
a)
When one allele is dominant and one is recessive
b)
When an individual has either RR or rr
c)
when it is neither dominant or recessive
10.
Does this pedigree show an autosomal or X-linked trait?
a)
Autosomal
b)
X-linked
11.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
12.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
13.
The children of a parent
a)
inborn
b)
innate
c)
offspring
d)
instinctive behaviors
14.
is the genetic information passing for traits from parents to their offspring, either through asexual reproduction or sexual reproduction.
a)
heredity
b)
Genetics
c)
sex-linked
d)
alleles
15.
_______ the study of heredity and the variation of inherited characteristics
a)
Heredity
b)
Genetics
c)
Sex-linked
d)
alleles
16.
_________ the pattern of inheritance that may result from a mutant gene located on either the X or Y chromosome.
a)
sex-linked
b)
alleles
c)
meiosis
d)
gamete
17.
__________ one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
a)
alleles
b)
heredity
c)
sex-linked
d)
gamete
18.
________ is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction.
a)
meiosis
b)
gamete
c)
genotype
d)
phenotype
19.
a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
a)
gamete
b)
alleles
c)
genotype
d)
phenotype
20.
________________ a mature haploid male or female germ cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote.
a)
genotype
b)
phenotype
c)
segregation
d)
assortment
21.
the set of observable characteristics of an individual resulting from the interaction of its genotype with the environment.
a)
gamete
b)
genotype
c)
phenotype
d)
trait
22.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous genes
d)
mutated DNA
23.
different forms of the same gene are called
a)
alleles
b)
genetics
c)
p generation
d)
law of segregation
24.
the physical characteristics that result from genes
a)
phenotype
b)
genotype
c)
heterozygous
d)
homozygous
25.
HH crossed with Hh. What is the probability of hh?
a)
0%
b)
25%
c)
50%
d)
100%
26.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
27.
RR
a)
homozygous
b)
heterozygous
28.
OO
a)
homozygous
b)
heterozygous
29.
Pp
a)
Homozygous
b)
Heterozygous
30.
HH
a)
homozygous
b)
heterozygous
31.
Zz
a)
homozygous
b)
heterozygous
32.
Tall is dominant to short. What is the phenotype of this organism?
Tt
Tt
a)
tall
b)
short
33.
Yellow is dominant to white. What is the phenotype of this organism?
yy
yy
a)
Yellow
b)
white
34.
What is genetics?
a)
The study of DNA nucleotides
b)
The study of heredity
c)
The study of a cell dividing into 2
d)
The study of eye color
35.
What is heredity?
a)
How different genes and traits are passed down from parents to children
b)
How different genes and traits are passed down from children to parents
c)
How traits are identical to parents
d)
How traits are different between siblings
36.
What is a gene?
a)
An entire chromosome that codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
37.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
38.
__________ the separation of pairs of alleles at meiosis and their independent transmission via separate gametes.
a)
gamete
b)
genotype
c)
segregation
d)
assortment
39.
A genetically determined characteristic or condition
a)
trait
b)
heredity
c)
genotype
d)
meiosis
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