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WorksheetsBio1, Ch11 Meiosis & Inheritance
Total questions: 62
Worksheet time: 1hrs 10mins
Name
Class
Date
1.
What is the purpose of using a pedigree?
a)
To determine the average age of a family
b)
To find out family histories and medical records
c)
To find out whether a couple can have a boy or a girl
d)
To trace the inheritance of a certain trait through generations
2.
How many PAIRS of chromosomes do humans have?
a)
23
b)
46
c)
1
d)
2
3.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
4.
If a gene is found only on the X chromosome and not the Y chromosome, it is said to be what?
a)
sex-linked trait
b)
polygenic trait
c)
codominant trait
d)
incomplete dominance trait
5.
What percentage of the offspring will have this recessive disease?
a)
0%
b)
25%
c)
50%
d)
75%
6.
What percentage of the female offspring will be a carrier for this recessive disease?
a)
0%
b)
50%
c)
100%
d)
25%
7.
Looking at this pedigree, how many female family members are carriers?
a)
1
b)
3
c)
10
d)
7
8.
Looking at this pedigree, how many family members have the disease?
a)
4
b)
7
c)
All
d)
None
9.
What is NOT a possible genotype for someone with type B blood?
a)
BB
b)
AB
c)
BO
10.
If a woman is a carrier for a sex linked recessive trait of hemophilia and her husband has hemophilia, which of the following is true? Make a punnett square!
a)
All sons will have hemophilia
b)
all daughters will have hemophilia
c)
50% of daughters and 50% of sons have hemophilia
d)
100% of sons have hemophilia and 100% of daughters are carriers
11.
What are small stretches of DNA that code for traits
a)
Nucleus
b)
Chromosomes
c)
Gene
d)
Centromeres
12.
Which of the following is homozygous dominant?
a)
Yy
b)
Y
c)
yy
d)
YY
13.
The phenotype is the _______________.
a)
physical appearance of an organism
b)
Genetic makeup
c)
Alleles acquired from a specific parent.
14.
The Law of Independent Assortment states:
a)
most genes are inherited together
b)
only dominant genes are inherited
c)
recessive genes can never be expressed
d)
genes that control different characteristics are inherited separately and are not related
15.
The Law of Segregation states:
a)
alleles are inherited together
b)
alleles separate during gamete formation
c)
only dominant genes are inherited
16.
The passing of characters from parents to offspring is called?
a)
Monohybrid cross
b)
Heredity
c)
True breeding
d)
Genetics
17.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
18.
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%
19.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
20.
A human usually has xx amount of chromosomes.
a)
6
b)
22
c)
4
d)
46
21.
What phase is shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
22.
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
a)
23, 46
b)
46, 23
c)
2, 4
d)
50, 100
23.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
24.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
25.
When an area of a chromatid is exchanged with the matching area on a chromatid of its homologous chromosome, _________________ occurs
a)
crossing over
b)
mutagenesis
c)
hybridization
d)
fertilization
26.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
27.
If the Diploid number of Carrots is 18, the haploid number is
a)
18
b)
9
c)
27
d)
36
28.
The process of crossing over occurs in what phase of meiosis?
a)
anaphase 1
b)
prophase 1
c)
prophase 2
d)
telophase 1
29.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
30.
What phase is represented?
a)
prophase1
b)
prophase 2
c)
telophase 1
d)
telophase 2
31.
What phase is represented?
a)
metaphase 1
b)
metaphase 2
c)
anaphase 1
d)
anaphase 2
32.
Mendel's law of segregation states that during meiosis, the alleles that control each trait separate, and only _________________ from each pair is/are passed to the offspring
a)
one allele
b)
the dominant trait
c)
two alleles
d)
the recessive trait
33.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
34.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
35.
What is the name of the structure labeled X?
a)
Centriole
b)
Centrosome
c)
Chromatid
d)
Chromosome
36.
Which term refers to a picture of an individual’s chromosomes, used to detect genetic conditions?
a)
synapsis
b)
tetrad
c)
centriole
d)
karyotype
37.
DNA is replicated during ______ of the cell cycle.
a)
G1
b)
S
c)
G2
d)
G0
38.
What is the genotype for a pea plant heterozygous for round seeds (R), and homozygous recessive for green seeds (y)?
a)
Ry
b)
RRyy
c)
RrYy
d)
Rryy
39.
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
40.
What goes in box 2
a)
AABb
b)
AaBb
c)
aabb
d)
AaBB
41.
Who is the father of genetics?
a)
Charles Darwin
b)
Gregor Mendel
c)
Dimitri Mendeleev
d)
Hans Krebs
42.
A breed of chicken shows codominance for feather color. One allele codes for black feathers, another codes for white feathers. The feathers of heterozygous chickens of this breed will be:
a)
all black
b)
all white
c)
all gray
d)
speckled black and white
43.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Codominance
c)
Independent assortment
d)
Recessive inheritance
44.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
codominance
c)
complete dominance
d)
recessive pattern
45.
What is the sex of this individual?
a)
female
b)
male
46.
If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be?
a)
HH
b)
Hh
c)
hh
47.
Which individuals have the "genetic advantage" when it comes to resisting Malaria.
a)
homozygous dominant (HH)
b)
homozygous recessive (hh)
c)
heterozygous (Hh)
48.
Choose the correct statement
a)
both Malaria and Sickle cell are infectious diseases
b)
Malaria is an infectious disease and Sickle cell is an inherited disease
c)
Sickle cell is an infectious disease and Malaria is a genetic disease
49.
In areas with Malaria, natural selection has __________ the frequency of the sickle cell allele.
a)
increased
b)
decreased
c)
not affected
50.
What genetic disorder causes the body to produce unusually thick mucus in the lungs and intestines?
a)
Cystic Fibrosis
b)
Sickle Cell
c)
Down Syndrome
d)
Hemophilia
51.
What disease is characterized by abnormally shaped red blood cells?
a)
hemophilia
b)
sickle cell anemia
c)
phenylketonuria
d)
Huntington's
52.
This genetic disorder is inherited by a recessive allele found on the X chromosome.
a)
PKU
b)
Cystic fibrosis
c)
Down's syndrome
d)
Hemophilia
53.
Which genetic disorder is sex-linked?
a)
Huntington's
b)
cystic fibrosis
c)
red-green colorblindness
d)
sickle cell anemia
54.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
55.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
56.
If two parents are heterozygous for type A blood, what is the probability that their offspring would have type O blood?
a)
100 %
b)
75%
c)
50%
d)
25%
57.
if a person has an A phenotype what could be the genotype
a)
AA
b)
BO
c)
AO
d)
OO
58.
How many pairs of chromosomes does each person have?
a)
46
b)
23
c)
2
d)
1,046,023
59.
The trait that will be expressed only if two copies of the allele are present.
a)
Recessive
b)
Dominant
c)
DNA
60.
Brown eye color is dominant. Blue eye color is recessive. Select the person that is a purebred for blue eyes.
a)
BB
b)
Bb
c)
bB
d)
bb
61.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
62.
What do experts say is the most common form of Down Syndrome?
a)
Trisomy 47
b)
Trisomy 46
c)
Trisomy 21
d)
Trisomy 23
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