WorksheetsMendelian Genetics Chapter 6b
Total questions: 43
Worksheet time: 1hrs 8mins
Name
Class
Date
1.
Who is considered the "Father of Genetics?"
a)
James Watson
b)
Francis Crick
c)
Gregor Mendel
d)
Albert Einstein
2.
True or False: Genetics is the scientific study of heredity.
a)
True
b)
False
3.
What is another name for "true breeding?"
a)
Heterozygous
b)
Purebred
c)
Hybrid
d)
Cross Pollinating
4.
All offspring plants in the F1 generation were purple because purple is the ______________ trait.
a)
Heterozygous
b)
Homozygous
c)
Dominant
d)
Recessive
5.
Which of the following does NOT describe the flowers in the F1 Generation?
a)
Hybrid
b)
Heterozygous
c)
Purebred
6.
Gregor Mendel's "P" generation consisted of purple flower plants crossed with white flower plants. What were the results of this cross?
a)
All purple flower offspring
b)
All white flower offspring
c)
Some purple flowers and some white flowers
7.
True or False: The trait NOT seen in the F1 generation is the DOMINANT trait.
a)
True
b)
False
8.
Which of the following best explains the results of letting the F1 purple hybrids self pollinate?
a)
100% Purple
b)
100% White
c)
50% Purple, 50% White
d)
75% Purple, 25% White
9.
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
10.
The different forms of a gene are known as _____________.
a)
Codons
b)
Proteins
c)
Alleles
d)
Nucleotides
11.
True or False: Mendel's "Law of Dominance" states that some alleles are dominant which others are recessive.
a)
True
b)
False
12.
Which of Mendel's laws states that alleles are separated during meiosis?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
13.
According to the Law of Segregation, alleles are separated during the process of _____________.
a)
Mitosis
b)
Meiosis
c)
Osmosis
d)
Translation
14.
Which of Mendel's laws states that alleles are distributed to gametes independent of one another?
a)
Law of Dominance
b)
Law of Segregation
c)
Law of Independent Assortment
d)
Law of Meiosis
15.
Which of the following best describes a GENOTYPE?
a)
The allele/genetic makeup of an organism.
b)
The physical expression of a trait.
16.
Which of the following is an example of a GENOTYPE?
a)
25%
b)
Blue
c)
1:2:1
d)
Bb
17.
Which of the following is an example of a PHENOTYPE?
a)
25%
b)
Blue
c)
1:2:1
d)
Bb
18.
Which of the following is an example of a homozygous recessive genotype?
a)
RR
b)
Rr
c)
rr
19.
Which of the following is an example of a homozygous dominant genotype?
a)
RR
b)
Rr
c)
rr
20.
Which of the following is an example of a heterozygous genotype?
a)
RR
b)
Rr
c)
rr
21.
What is the FUNCTION of the visual tool seen in the image?
a)
Identifies the location of a gene.
b)
Determines the DNA sequence of an organism.
c)
Predicts the possible results of a genetic cross.
d)
Tests for the presence of dominant alleles.
22.
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.
23.
True or False: A phenotype describes the physical expression (characteristics) of a gene. In other words, how something looks.
a)
True
b)
False
24.
True or False: If a dominant allele is present, the trait will always appear in the organism.
a)
True
b)
False
25.
What is another name for heterozygous?
a)
Hybrid
b)
Purebred
c)
Codominant
d)
Mixed Breed
26.
If a person has a genotype of RR, what do you know about their gametes (sex cells)?
a)
They will all carry the R allele.
b)
They will all carry RR.
c)
Some will carry R, some will carry r.
d)
They will all carry the r allele.
27.
If a person has a genotype of Rr, what do you know about their gametes (sex cells)?
a)
They will all carry the R allele.
b)
They will all carry Rr.
c)
Some will carry R, some will carry r.
d)
They will all carry the r allele.
28.
the passing of genetic traits from parent to offspring.
a)
heredity
b)
trait
c)
gene
d)
allele
29.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
30.
One of the parents of a child has phenylketonuria (PKU), which is caused by recessive alleles. The other parent does not have the PKU alleles. What is the chance that the couple will have a child with phenylketonuria?
a)
0%
b)
50%
c)
75%
d)
100%
31.
What gender has an X and a Y chromosome?
a)
male
b)
female
c)
transgender
d)
all of the above
32.
In a Punnett square each box represents a(n)....
a)
offspring
b)
parent
c)
gene
d)
trait
33.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
34.
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
35.
A male beetle has the genotype Ttbb. If this beetle mates with a female with genotype TTBb, what is the chance their offspring will have the genotype TtBb?
a)
3/16
b)
4/16
c)
8/16
d)
12/16
36.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?
a)
0/16
b)
4/16
c)
8/16
d)
16/16
37.
Mary is a good student. The probability that she studies and passes her test is 3/5. If the probability that she studies is 8/9, what is the probability that she passes given that she studies?
a)
24/45
b)
1.48
c)
.008
d)
.0593
38.
Which is true about a testcross?
a)
The dominant phenotype organism is unknown
b)
The recessive phenotype organism is unknown
c)
One of the organisms is always heterozygous
d)
One of the organisms is always homozygous recessive
39.
If 2 organisms, both GgYy are crossed, how many of their offspring will be ggyy?
a)
9/16
b)
16/16
c)
3/16
d)
1/16
40.
A bag contains 20 marbles: 5 blue, 8 green and 7 orange.
Find the probability of drawing a blue marble.
a)
8/20 = 0.4
b)
5/20 = 0.25
c)
5/15 = 0.333
d)
15/20 = 0.75
41.
Bag: 20 marbles, 5 blue
We draw the first marble and get a blue. We do not return it to the bag. What is the probability of the second marble being blue?
a)
4/19
b)
5/20
c)
4/20
d)
5/19
42.
Bag: 20 marbles, 5 blue
We draw three marbles without replacement. What is the probability of all three being blue? (Use a calculator. Round to five decimal places as needed.)
a)
0.25
b)
0.62719
c)
0.01563
d)
0.00877
43.
If you roll one die, what is the probability of getting an even number or a multiple of 3?
a)
1/3
b)
2/3
c)
1/2
d)
1/6
100 %
