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WorksheetsBioR 11-1 & 11-2
Total questions: 46
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
The man who studied genetics and came up with genetics is
a)
Watson
b)
Crick
c)
Mendel
d)
Darwin
2.
Genotype refers to the ...
a)
physical expression of the genes
b)
the possible combination of alleles in a gene
c)
whether an allele is dominant or recessive
d)
how an organism will appear
3.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
4.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
5.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
6.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
7.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
8.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
9.
Tall (T) is dominant over short (t). Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
10.
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
11.
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
12.
Brown (B) is dominant to blue (b).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%
13.
Which of the following genotypes is homozygous?
a)
Bb
b)
Gg
c)
bb
d)
Dd
14.
Which of the following genotypes would be considered heterozygous?
a)
BB
b)
gg
c)
Ff
d)
TT
15.
What is the percentage of offspring that have green pods?
a)
100%
b)
75%
c)
50%
d)
25%
16.
What percentage of the offspring in the punnett square are shown as heterozygous?
a)
100%
b)
75%
c)
50%
d)
25%
17.
What is the phenotype of the heterozygous parent in the punnett square?
a)
green
b)
yellow
c)
hybrid
d)
purebred
18.
In this punnett square, which is the dominant trait?
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
19.
If T=Tall & t=short, what is the genotypic ratio?
a)
1TT:3tt
b)
3tt:1TT
c)
1TT:2Tt:1tt
d)
2Tt:2tt
20.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
21.
What is a phenotype?
a)
The expression of a trait; what you see.
b)
refers to the genetic makeup of an individual
c)
An organism that has the same genes for a trait (ex. TT or tt)
d)
the passing of traits from parent to offspring
22.
Which of the following genotypes is homozygous recessive?
a)
RR
b)
Rr
c)
rr
d)
None of the Above
23.
Brown (B) is dominant over white (b). Which genotype is a homozygous for brown fur?
a)
BB
b)
Bb
c)
bb
d)
All of the above
24.
Which of the following terms refers to the different possibilities of a gene?
a)
chromosome
b)
DNA
c)
Punnett Squares
d)
allele
25.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
26.
What does a Punnett Square help you do?
a)
Determine the ratio of phenotypes
b)
Determine the ratio of genotypes
c)
Predict possible traits the offspring will have
d)
All of the above
27.
Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
28.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
29.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
30.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
31.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
32.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
33.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
34.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
35.
Aa is
a)
homozygous
b)
heterozygous
36.
aa always shows up as
a)
dominant
b)
recessive
37.
AA and Aa always show up as
a)
dominant
b)
recessive
38.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
39.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
40.
Passing of traits from one generation to the next
a)
Heredity
b)
Genetics
c)
Inheritance
d)
Allele
41.
Scientific study of how traits are passed to offspring through genes
a)
Heredity
b)
Genetics
c)
Inheritance
d)
Allele
42.
A chart that shows all the possible combinations of alleles that can result from a genetic cross
a)
Gene
b)
Pedigree
c)
Punnett Square
d)
Dominant
43.
Having two different alleles for a given trait, usually one dominant and one recessive
a)
Recessive
b)
Genotype
c)
Phenotype
d)
Heterozygous
44.
He is known as the father of modern day genetics.
a)
Gregory Mendel
b)
Greg Mendel
c)
Gregor Mendel
d)
Grace Mendel
45.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
46.
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
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