Question 1
The variation seen in human skin color and height is an example of a(n)
a
codominance.
b
intermediate inheritance.
c
polygenic inheritance.
d
multiple alleles.
Question 2
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 3
LaToya has type A blood, and Gerald has type B blood. Their daughter has type O blood. Can Gerald be the baby daddy? He is a bit worried.
Please complete the Punnett square(s) to determine the possibilities.
a
No, type B blood must be homozygous
b
No, this is impossible
c
Yes, if both parents are heterozygous
d
Yes, if one parent is heterozygous
Question 4
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 5
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 6
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 7
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)
Blank 1:
Question 8
Baldness is a dominant trait that is influenced by an individual's sex. A man will become bald if he has the genotype BB or Bb. A man who is bb will not become bald. A woman will have thinning hair, but not become totally bald, if she is BB. A woman will not become bald, or have thinning hair, if she is Bb or bb.
What will be the outcome if a woman who is XXbb produces a child with a man who is XYBb?
a
There is a 75% chance that the child will not become bald.
b
There is a 25% chance that the child will not become bald.
c
There is a 100% chance that the child will become bald.
d
There is a 50% chance that the child will become bald.
Question 9
For sneaky snakes, being rude (R) is dominant to being respectful (r). Complete the cross below, and determine the phenotype (dominant : recessive) ratio.
R r
r #1 #2
r #3 #4
2 (#5) : 2 (#6)
Column A
1.
#1:
#1
2.
#2:
#2
3.
#3:
#3
4.
#4:
#4
5.
#5:
#5
6.
#6:
#6
Column B
a.rude
b.respectful
c.rr
d.RR
e.sweet
f.Rr
g.sneaky
Question 10
A single gene mutation in cats can result in curly ears (see image).
The cats are healthy and normal beyond the ear structure.
The curly ear trait is recessive, and the allele for curly ears is $
and the allele for regular ears is S.
Select the best response from the options below.
American Curl Cat Breed Information
a
A - the phenotype for S$ is curly ears
b
B - the phenotype for $$ is curly ears
c
C - the genotype S$ results in a cat with regular ears
d
D - the phenotype SS results in a deadly genotype
e
F - B and C are correct
Question 1:
c) polygenic inheritance.
Question 2:
d) 25% pink.
Question 3:
c) Yes, if both parents are heterozygous.
Question 4:
b) Meiosis allows alleles to separate, increasing the variety of colors of the offspring.
Question 5:
a) Calf 1.
Question 6:
d) a whole new planarian worm can grow from a tiny piece of another.
Question 7:
25%.
Question 8:
a) There is a 75% chance that the child will not become bald.
Question 9:
a. #1: rude
b. #2: rude
c. #3: respectful
d. #4: respectful
e. #5: rude
f. #6: respectful
Question 10:
b) B - the phenotype for $$ is curly ears.