WorksheetsMendelian Genetics Review
Total questions: 30
Worksheet time: 7hrs 16mins
Name
Class
Date
1.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
2.
An allele whose trait always shows up in the organism when the allele is present.
a)
recessive allele
b)
dominant allele
c)
hidden allele
d)
present allele
3.
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
4.
an organism's appearance or other detectable characteristic
a)
genotype
b)
phenotype
c)
genetics
d)
heterozygous
5.
genetic makeup
a)
phenotype
b)
genotype
c)
heterzygous
d)
allele
6.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
7.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
8.
father of genetics
a)
Gregor Mendel
b)
James Watson
c)
Dr. Robbins
d)
Francis Crick
9.
A characteristic that an organism can pass on to its offspring through its genes
a)
protein
b)
trait
c)
DNA
d)
gene
10.
A molecule that stores information for living things
a)
dna
b)
coffee
c)
chromosome
d)
punnett
11.
the study of heredity
a)
Chromosome Theory
b)
Genetics
c)
Punnetism
12.
What chance does the offspring have of showing a dominant trait?
a)
100%
b)
75%
c)
50%
d)
0%
13.
What is the allele combination for square 1?
a)
Dd
b)
DD
c)
dd
d)
D
14.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
15.
When the allele combination is a dominate and a recessive trait together which trait will be seen?
a)
Dominate
b)
Recessive
c)
none
d)
both
16.
Are recessive traits shown with capital or lowercase letters?
a)
Capital
b)
Lowercase
17.
Chromosomes are found in the ____________ of the cell
a)
Chloroplast
b)
Nucleus
c)
Cytoplasm
d)
Mitochondria
18.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
19.
T = tall an t = short
TT and Tt would result in the following phenotype
TT and Tt would result in the following phenotype
a)
short
b)
tall
c)
both tall and short
d)
neither tall or short
20.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
21.
Aa is
a)
homozygous (purebred)
b)
heterozygous (hybrid)
22.
Which will make a hitchhiker's thumb, if it is a recessive trait?
a)
hH
b)
Hh
c)
HH
d)
hh
23.
The different forms of a gene are called
a)
traits
b)
pollinators
c)
alleles
d)
hybrids
24.
What is an allele that is masked or covered up when a dominant allele is present called?
a)
dominant
b)
recessive
c)
homozygous
d)
heterozygous
25.
What is a Punnett Square?
a)
A tood used to predict the results of a genetic cross
b)
A homozygous cross
c)
A heterozygous cross
d)
A dominant trait
26.
The haploid (half) number of human chromosomes is
a)
11
b)
12
c)
23
d)
46
27.
The diploid number (all) of human chromosomes is
a)
23
b)
46
c)
92
28.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
29.
Reproduction that involves the union of a sperm and egg and results in offspring who have a combination of genetic information from both parents.
a)
Cloning
b)
Asexual
c)
Sexual
d)
Homozygous
30.
Reproduction that involves one parent and produces an exact replica of the parent.
a)
Asexual
b)
Sexual
100 %
