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Use a Punnett square. In rabbits, black fur is dominant over white fur. What percentage of offspring will be white if a heterozygous male and homozygous dominant female have offspring?

Question 1 options:


50%


100%


25%


0%
Question 2 (3 points)
Question 2 Unsaved

Use a Punnett square to help answer the question.

In humans, free ear lobes are dominant over attached ear lobes. Two parents who are heterozygous are expecting a child. What is the percentage that the child will have free ear lobes?


Question 2 options:


75%


100%


50%


0%
Question 3 (3 points)
Question 3 Unsaved

Use a Punnett square to help answer the question.

In humans, free ear lobes are dominant over attached ear lobes. Two parents who are heterozygous are expecting a child. What is the percentage that the child be homozygous dominant?
Question 3 options:


75%


25%


0%


50%
Question 4 (3 points)
Question 4 Unsaved

Use a Punnett square to answer the question.

In peas, wrinkled seeds are recessive to smooth seeds. If a homozyous recessive and a heterozygous plant have offspring what will percentage will have smooth seeds?
Question 4 options:


50%


75%


0%


25%
Question 5 (3 points)
Question 5 Unsaved

Use a Punnett square to answer the question.

In peas, wrinkled seeds are recessive to smooth seeds. If a homozyous recessive and a heterozygous plant have offspring what will percentage will be homozygous dominant?

punn
Question 5 options:


25%


50%


100%


0%
Question 6 (3 points)
Question 6 Unsaved

Given the nucleotide sequences below, what type of mutation has occurred?

Before:

A C C G T A T G T C A T

After:

A C C G T A A G T C A T
Question 6 options:


mixer


deletion


insertion


substitution
Question 7 (3 points)
Question 7 Unsaved

What genetic variation has occurred in the picture below where a black bunny and a white bunny have an offspring that shows both black and white fur?




Question 7 options:


Incomplete dominance


Codominance


Mixed dominance


Co-allele
Question 8 (3 points)
Question 8 Unsaved

Which answer below, would be a possible new strand if there was a insertion mutation in the sequence below?

T T C G A A T C G T A T G A C
Question 8 options:


T T C G A A T C T G T A T G A C



T T G A A T C G T A T G A C


T T C G A A T C C T A T G A C


T T C G A T T C G T A T G A C
Question 9 (3 points)
Question 9 Unsaved

Environmental influences and genetics can determine a person's phenotype.
Question 9 options:
True
False
Question 10 (3 points)
Question 10 Unsaved

Humans have been choosing desired traits of livestock and pets for centuries by breeding organisms that they choose with the traits they desire. This process is called
Question 10 options:


breed choosing


selective breeding


pick selelction


selective webbing
Question 11 (3 points)
Question 11 Unsaved

Karyotypes are done by matching up _____________________________ so that they are paired up.
Question 11 options:


homologous chromosomes


sister chromatids


sister chromosomes


homologous chromatids

1 Answer

0 votes

Answer 1:

Option D is correct: 0%

Percentage of offspring will be 0% white if a heterozygous male and homozygous dominant female have offspring.

Answer 2:

Option A is correct: 75%

Two parents who are heterozygous are expecting a child. the percentage that the child will have free ear lobes will be 75%.

Answer 3:

Option A is correct: 25%

Two parents who are heterozygous are expecting a child. 25 is the percentage that the child be homozygous dominant.

Answer 4:

Option D is correct: 25%

If a homozyous recessive and a heterozygous plant have offspring. 25 will percentage will have smooth seeds.

Answer 5:

Option D is correct: 0%

If a homozyous recessive and a heterozygous plant have offspring. There will 0% chances that offsprings will be homozygous dominant.

Answer 6:

Option D is correct: substitution

In this question one of base thymine at 7 number is substituted with another base Adenine.

Answer 7:

Option A is correct: Incomplete dominance

Incomplete dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele. This results in a third phenotype in which the expressed physical trait is a combination of the phenotypes of both alleles.

Answer 8:

Option A is correct: T T C G A A T C T G T A T G A C

After the insertion of a new base thymine the new sequence will be of option A.

Answer 9:

True

Yes this is true that "Environmental influences and genetics can determine a person's phenotype".

Answer 10:

Option B is correct: selective breeding

Humans have been choosing desired traits of livestock and pets for centuries by breeding organisms that they choose with the traits they desire. This process is called selective breeding.

Answer 11:

homologous chromosomes

karyotyping is a test that evaluates the number and structure of a person's chromosomes in order to detect abnormalities. Chromosomes are thread-like structures within each cell nucleus and contain the body's genetic blueprint.


User Eric Legault
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