Question 1
The diagram shows a DNA fingerprint from a cow and four calves. Which of these is MOST LIKELY the calf of this cow?
Cow Mom I Love Moo Mug: Kitchen & Dining
a
Calf 1
b
Calf 2
c
Calf 3
d
Calf 4
Question 2
The diagram shows a cross between two pink flowers.
What is the role of meiosis in creating variations in the offspring of this cross?
a
Meiosis allows alleles to separate, decreasing the variety of colors of the offspring.
b
Meiosis allows alleles to separate, increasing the variety of colors of the offspring.
c
Meiosis allows alleles to stay together, increasing the variety of colors of the offspring.
d
Meiosis allows alleles to stay together, decreasing the variety of colors of the offspring.
Question 3
How many chromosome pairs are shown in a normal human karyotype?
a
2
b
23
c
44
d
46
Question 4
Chicken Dance GIFs | TenorIt is found that in cha-cha chickens, the allele for a double comb (A) is dominant to the allele for a single comb (a). A mother with the genotype Aa and a father with the genotype Aa produce an offspring.
What is the percent chance that the offspring will have a single comb? % (only include the number)
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Question 5
Read the passage about stem cells.
Present in all kinds of tissues, stem cells have the unique ability to develop into other kinds of cells if necessary. An organism's stem cells can transform into brain cells, blood cells, muscle cells, or any other specialized cell found in the organism. Planarian worms have an extremely high stem cell count throughout their bodies.
Which answer best describes an advantage to a planarian worm from having a high stem cell count?
a
a planarian worm's cells can never truly die
b
planarian worms can adapt to any environmental changes
c
planarian worms are able to evolve faster than other organisms
d
a whole new planarian worm can grow from a tiny piece of another
Question 6
Clouded leopards are a medium-sized, endangered species of cat, living in the very wet cloud forests of Central America. Assume that the normal spots (XN) are a dominant, sex-linked trait and that dark spots are the recessive counterpart.
Suppose, as a Conservation Biologist, you are involved in a clouded leopard breeding program. One year you cross a male with dark spots and a female with normal spots. She has four cubs and, conveniently, two are male and two female. One male and one female cub have normal spots and one each have dark spots.
What is the genotype of the mother for this sex-linked trait?
a
impossible to determine with given information
b
homozygous
c
heterozygous
d
purebred for normal spots
Question 7
Premium Photo | Three little orange striped kitten on white background high resolution photoA common trait found in orange tabby cats is the following: being awesome (A) is dominant to being average (a).
A male cat that is homozygous dominant for the A trait is mated with a female cat that is homozygous recessive.
For a cross with four offspring, what is the probability that they will have an offspring who is heterozygous?
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Question 8
Incomplete dominance is shown in the fruitloop flower, WW are white, RR are red and WR are pink.
Use scratch paper to set up a Punnett square for a cross of the F1 generation (pink flowers).
What is the percentage of pink flowered offspring in the F2 generation of two pink flowering fruitloop plants?
a
100% pink
b
75% pink
c
50% pink
d
25% pink
e
no pink
Question 9
Hemophilia, a blood clotting disorder in humans, is due to an X-chromosome mutation. What will be the results of mating between a normal (non-carrier) female and a hemophiliac male?
(Hint: this is a sex-linked trait)
a
All sons are normal, and all daughters are carriers (heterozygous).
b
Half of sons are normal and half are hemophiliac; and all daughters are (heterozygous).
c
Half of daughters are normal and half of sons are hemophiliac.
d
All daughters are normal, and all sons are carriers (heterozygous).
Question 10
Directions: Watch this video and then use the information below to answer any questions that follow.
There are three different alleles for blood-type: A, B, and O. A and B are dominant over O. If a person has A and B genes, he or she has blood-type AB. This is referred to as a codominant pattern of heredity.
Jane's mother and father have type B blood. When Jane's blood was tested, she found she had a blood-type of O. Select the best response from the options below.
Modes of Inheritance | BioNinja
a
Both parents have a recessive gene for type O blood.
b
One of them is homozygous for type B blood.
c
One of them has a recessive gene for type O blood.
d
Both parents are homozygous for type B blood.
dont get anything wrong