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WorksheetsBV Meiosis and Heredity
Total questions: 89
Worksheet time: 3hrs 23mins
Name
Class
Date
1.
If one red flower is mated with one white flower, which would be an example of incomplete dominance expressed in the offspring?
a)
Red offspring
b)
White offspring
c)
Yellow offspring
d)
Pink offspring
2.
Which is an example of a heterozygous genotype?
a)
Tt
b)
FF
c)
dd
d)
rR
3.
Which of the following is an example of a homozygous genotype?
a)
Hh
b)
uu
c)
Zz
d)
cC
4.
Which of the following is an example of a phenotype?
a)
Brown eyes
b)
Blonde hair
c)
Small ears
d)
All of the above
5.
What are multiple alleles?
a)
When more than three alleles can code for a gene
b)
Gene interactions
c)
When more than two alleles can code for a gene
d)
Dominant alleles
6.
What is an example of codominance?
a)
A person with type AB blood
b)
Gene expression
c)
ordinary dominance
d)
free homework
7.
A sex cell that has half the amount of DNA that is found in a body cell.
a)
gene
b)
gamete
c)
fertilization
d)
allele
8.
The study of heredity is known as
a)
Hereditology
b)
Genetics
c)
Biology
d)
Law of Heredity
9.
Plants that produce offspring with the same trait are known to be...
a)
Cross-pollinated
b)
F1 Generation
c)
Self-pollinated
d)
True-breeding
10.
What is an organism's genetic makeup known as?
a)
Phenotype
b)
Chromosome
c)
DNA
d)
Genotype
11.
The physical appearance of the organism is known as the
a)
Phenotype
b)
Chromosome
c)
Nucleictype
d)
Genotype
12.
What would the genotypes be?
a)
TT, TT, Tt, Tt
b)
TT, Tt, Tt, tt
c)
Tt, Tt, tt, tt
d)
None of the above
13.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
14.
What is a cross in which two characteristics are tracked?
a)
Monohybrid
b)
Dihybrid
c)
Double Cross
d)
Dicross Square
15.
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%
16.
A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?
a)
1
b)
2
c)
3
d)
4
17.
How many pairs of chromosomes are in your cells?
a)
23
b)
19
c)
12
d)
10
18.
What is the Punnett square used to predict?
a)
possible genotypes for the cross
b)
which traits are dominant
c)
which traits are recessive
d)
the number of offspring
19.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
20.
If a body cell in a butterfly contains 24 chromosomes, a butterfly egg would contain
a)
3
b)
6
c)
12
d)
24
21.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather thna from eggs
d)
offspring inherit a wider variety of genetic information
22.
How many times in meiosis does the cell divided?
a)
2
b)
4
c)
3
d)
1
23.
When two haploid sex fuse together during fertilization they become ______________
a)
haploid cells
b)
meiosis
c)
mitochondria
d)
diploid cells
24.
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
25.
The sex of an offspring is determined by ______________________.
a)
the mother
b)
the father
c)
the mother and the father
d)
by the environment
26.
Incomplete dominance means that the traits are
a)
expressed equally
b)
dominant
c)
recessive
d)
blended
27.
Polygenic means that _____________________ control a characteristic
a)
many genes
b)
single genes
c)
3 genes
d)
no genes
28.
Red/green color blindness is a recessive trait. A woman who is a carrier for this allele marries a normal-vision male. What is the probability that they will have a child who is color blind?
a)
1/4
b)
1/2
c)
3/4
d)
1
29.
Different forms of a gene are called
a)
Chromosome
b)
Genes
c)
Traits
d)
Alleles
30.
A characteristic that an organism can pass on to its offspring through its genes
a)
protein
b)
trait
c)
DNA
d)
gene
31.
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
32.
an organism's appearance or other detectable characteristic
a)
genotype
b)
phenotype
c)
genetics
d)
heterozygous
33.
This is a part of the chromosome that carries information and controls a trait
a)
trait
b)
gene
c)
chromosome
d)
offspring
34.
What is the type of gene whose effect can be hidden?
a)
dominant gene
b)
inherited trait
c)
recessive gene
d)
acquired trait
35.
Which of the characteristics is a lion least likely to pass on to its offspring?
a)
fur color
b)
length of tail
c)
scars on leg
d)
body size
36.
Based only on the sex chromosomes in typical human egg and sperm cells at fertilization, the probability of producing a female is
a)
25%
b)
50%
c)
75%
d)
90%
37.
Coiled DNA found in the cells; contains genes that encode traits.
a)
gene
b)
chromosome
c)
trait
d)
DNA
38.
Which statement correctly describes meiosis?
a)
cells divide only once
b)
meiosis does not occur in reproductive cells
c)
the cells produced at the end of meiosis are genetically identical to the parent cell
d)
The cells produced at the end of meiosis contain half the number of chromosomes as the parent cell
39.
The "factory" through which the "protein assembly line" is fed is the
a)
cell membrane
b)
nucleus
c)
ribosome
d)
mitochondria
40.
A mutation in DNA Could result in
a)
no change at all
b)
a harmful change
c)
a positive change
d)
All of the above
41.
Probability is
a)
the mathematical chance that an event will occur.
b)
a 50% chance that an event will occur.
c)
a 3:1 chance that an event will occur.
d)
always expressed as a ratio.
42.
A gene is
a)
a set of instructions for each trait.
b)
a portion of a strand of DNA.
c)
instructions on how to make a protein.
d)
All of the above.
43.
Humans produce sex cells through a process called
a)
cytokinesis.
b)
mitosis.
c)
meiosis.
d)
binary fission.
44.
In fruit flies eye color is carried on the X chromosome. RED is dominant to WHITE. What is the sex and color of the following: XRXR
a)
female red
b)
female white
c)
male red
d)
male white
45.
In humans, skin tone is caused by 3 genes, each with 2 alleles. This is an example of
a)
codominance
b)
incomplete dominance
c)
polygenic inheritance
d)
multiple alleles
46.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
47.
_____________ is a type of cell division in which the number of chromosomes is reduced
a)
Mitosis
b)
Cytokenesis
c)
Meiosis
d)
Prophase
48.
Meiosis lead to _____.
a)
Cell regeneration
b)
Tissue growth
c)
The production of gametes
d)
None of the above
49.
Why is crossing-over important?
a)
It creates new genes
b)
It completes prophase of meiosis I
c)
It creates more genetically unique gametes
d)
All of the above
50.
If a cell has 12 chromosomes at the beginning of meiosis, how many will it have at the end of meiosis?
a)
3
b)
24
c)
12
d)
6
51.
Sexual reproduction _____.
a)
Produces genetic clones
b)
Leads to uniform characteristics in a population
c)
Requires less tissue differentiation
d)
Results in new combinations of genetic traits
52.
The cells produced via meiosis are called:
a)
sex cells
b)
somatic cells
c)
body cells
d)
skin cells
53.
This produces 2 identical cells.
a)
mitosis
b)
meiosis
54.
What is it called when a sperm and egg meet?
a)
meiosis
b)
fertilization
c)
cell division
d)
mitosis
55.
What causes genetic variation in meiosis?
a)
chromosomes lining up
b)
crossing over of chromosomes
c)
separation of chromosomes
d)
chromosomes pulling apart
56.
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
57.
Diploid Cells are represented by
a)
2n
b)
n
c)
4n
d)
1/2 n
58.
Which process and type of resulting cells are represented?
a)
mitosis, gametes
b)
mitosis, body cells
c)
meiosis, gametes
d)
meiosis, body cells
59.
The chromosomes that pair up during meiosis, are called __________ chromosomes.
a)
homozygous
b)
asexual
c)
homologous
d)
genes
60.
When homologous chromosomes match up, they form a structure call a ___________.
a)
tetrad
b)
triad
c)
diploid
d)
gamete
61.
Is the following cell diploid or haploid?
a)
Diploid
b)
Haploid
62.
How many genes do you have for each trait?
a)
1
b)
46
c)
2
d)
4
63.
What percent of genetic information is passed from each parent?
a)
50%
b)
25%
c)
2%
d)
100%
64.
The genotype BB would be considered
a)
homozygous recessive
b)
homozygous dominant
c)
heterozygous
65.
The genotype Tt would be considered
a)
homozygous recessive
b)
heterozygous
c)
homozygous dominant
66.
What chart is used to predict possible outcomes of offspring based on the genes of the parents?
a)
punnett square
b)
periodic table
c)
dihybrid cross
d)
T-chart
67.
Which is NOT an example of an inherited trait
a)
language
b)
hair color
c)
eye color
d)
nose shape
68.
an organism's appearance or other detectable characteristic
a)
genotype
b)
phenotype
c)
genetics
d)
heterozygous
69.
one of the alternative forms of a gene that governs a characteristic, such as hair color
a)
allele
b)
gene
c)
trait
d)
DNA
70.
What is a dominant allele?
a)
A trait that is always shown (capital letter)
b)
A trait that can be hidden (lower case letter)
c)
Alleles that are the same
d)
Alleles that are different
71.
What is a gene?
a)
An entire chromosome that codes for a trait
b)
a piece of clothing
c)
a piece of a DNA on chromosome that codes for a trait
d)
Chemical messengers in your brain that code for a trait
72.
___________________________ is the study of how traits are passed on, or inherited.
a)
dominant traits
b)
ratio
c)
phenotype
d)
genetics
73.
Why do sexually reproducing organisms look like their parents?
a)
Boys look more like their dads and girls look more like their moms
b)
They get half of their genetic material from one parent and half from the other parent
c)
They get more genetic material from the parent they most resemble
d)
They only get genetic material from one parent
74.
Heredity is the passing of traits from _____________________ to _____________________
a)
predators to prey
b)
water to rain
c)
parents to offspring
d)
fungi to protists
75.
What is an organisms appearance called?
a)
phenotype
b)
genotype
c)
dominant
d)
recessive
76.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
77.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
78.
This type of inheritance pattern is a MIXTURE of both traits.
a)
incomplete dominance
b)
co-dominance
c)
complete dominance
d)
recessive pattern
79.
This type of inheritance pattern shows BOTH traits in possible offspring
a)
complete dominance
b)
incomplete dominance
c)
co-dominance
d)
dominant pattern
80.
When two or more genes control one single trait.
a)
Multiple Alleles
b)
Several Genes
c)
Polygenetic Traits
d)
Genotype
81.
When two or more alleles for a trait exist in a population. Ex: Different hair colors
a)
Polyploidy
b)
Multiple Genes
c)
Multiple Alleles
d)
Polysaccharide
82.
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
83.
Which law states that alleles for different traits separate independently during meiosis?
a)
Law of Independent Assortment
b)
Law of Segregation
c)
Law of Genetics
d)
Law of Separation
84.
What is a Punnett square used to predict?
a)
possible genotypes & phenotypes of offspring
b)
possible genotypes & phenotypes of the parents
c)
determine the actual outcome of genetic crosses
d)
determine how many offspring a couple will have
85.
The range of human skin colors is caused by a variety of genes, each of which has at least 2 alleles. This is an example of:
a)
incomplete dominance
b)
codominance
c)
multiple alleles
d)
polygenic inheritance
86.
ABO blood types are an example of what type of inheritance?
a)
multiple alleles
b)
incomplete dominance
c)
polygenic inheritance
d)
genetic mutations
87.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
88.
I have 2 X chromosomes. What am I?
a)
Male
b)
Female
89.
I have 1 X chromosome and 1 Y chromosome. What am I?
a)
Male
b)
Female
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