WorksheetsIntro to Genetics & Inheritance
Total questions: 23
Worksheet time: 46mins
Name
Class
Date
1.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
2.
What kind of cells are made in MEIOSIS?
a)
Haploid cells
b)
Diploid Cells
c)
Skin Cells
d)
Liver Cells
3.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
4.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
5.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
6.
products of meiosis are genetically
a)
different
b)
identical
7.
A human zygote should have _____ chromosomes inside.
a)
46
b)
23
c)
92
d)
64
8.
How many daughter cells does Meiosis create?
a)
2
b)
4
c)
8
d)
1
9.
What is the percentage of homozygous recessive offspring?
a)
0%
b)
25%
c)
50%
d)
75%
10.
Green peas are dominant (G) to yellow peas (g). What is the genotype for a hetereozygous dominant offspring?
a)
Gg
b)
gg
c)
GG
11.
Dominant alleles are represented by a(n)
a)
phenotype
b)
lower case letter
c)
upper case letter
d)
punnett square
12.
If two purebred species (BB) are crossed, what percentage of their offspring would be BB?
a)
25%
b)
50%
c)
75%
d)
100%
13.
What do you call the physical expression of a gene?
a)
genotype
b)
dominant
c)
phenotype
d)
allele
14.
What percentage of the possible offspring will be hybrids?
a)
25%
b)
50%
c)
75%
d)
100%
15.
The instructions of this allele are covered up by the other allele in a homologous pair. Symbolized by a small letter.
a)
Homozygous
b)
Dominant
c)
Recessive
d)
Genetics
16.
The letter symbols for both homologous alleles.
BB Bb bb AA Aa aa
a)
Genotype
b)
Phenotype
c)
Recessive
d)
Dominant
17.
The genetic cross between two parents for one trait:
Example BB x bb
B = dominant for brown
b = recessive for blue
a)
Incomplete Dominance
b)
Dihybrid Cross
c)
Monohybrid Cross
d)
Iron Cross
18.
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
19.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
20.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
21.
This image is an example of a _____________ cross.
a)
Monohybrid
b)
Dihybrid
c)
Purebred
d)
Pure Breeding
22.
What proportion of the offspring in Figure 11-4 would be expected to have white, smooth hair?
a)
9/16
b)
3/16
c)
4/16
d)
1/16
23.
Gregor Mendel is the Father of
a)
Alleles
b)
Punnett Squares
c)
Genetics
d)
Ecology
100 %
