Ask a New Question
Menu

1 of 11 of 1 Items

Question 1
What is a gene? (1 point)
Responses

a section of DNA that encodes a specific protien
a section of DNA that encodes a specific protien

a structure that contains many chromosomes
a structure that contains many chromosomes

a point that joins two halves of a chromosome
a point that joins two halves of a chromosome

a large molecule that performs a specific funcion
a large molecule that performs a specific funcion
Question 2
Which option contains all of the other options listed? (1 point)
Responses

chromosome
chromosome

gene
gene

centromere
centromere

chromatid
chromatid
Question 3
In pea plants, the allele for purple flowers, P, is dominant over the allele for white flowers, p. Which conclusion about phenotype and genotype is possible? (1 point)
Responses

If a plant has white flowers, then its genotype must be Pp.
If a plant has white flowers, then its genotype must be Pp.

If a plant has white flowers, then its genotype must be pp.
If a plant has white flowers, then its genotype must be pp.

If a plant has purple flowers, then its genotype must be Pp.
If a plant has purple flowers, then its genotype must be Pp.

If a plant has purple flowers, then its genotype must be PP.
If a plant has purple flowers, then its genotype must be PP.
Question 4
What is a phenotype of an organism? (1 point)
Responses

an observable trait
an observable trait

a combination of alleles
a combination of alleles

a structure that carries genetic information
a structure that carries genetic information

a section of DNA
a section of DNA
Question 5
What is an allele? (1 point)
Responses

a form of a gene
a form of a gene

the trait a gene controls
the trait a gene controls

the location of a gene on a chromosome
the location of a gene on a chromosome

a dominant form of a gene
a dominant form of a gene
Question 6
How do the terms genotype and phenotype relate? (1 point)
Responses

Both are sets of alleles that define traits.
Both are sets of alleles that define traits.

Both are terms for observable traits.
Both are terms for observable traits.

An organism's phenotype leads to its genotype.
An organism's phenotype leads to its genotype.

An organism's genotype leads to its phenotype.
An organism's genotype leads to its phenotype.
Question 7
How are the plant height genotypes TT and Tt similar? (1 point)
Responses

Both are examples of homozygous genotypes.
Both are examples of homozygous genotypes.

Both are expressed as a tall phenotype.
Both are expressed as a tall phenotype.

Both are examples of heterozygous genotypes.
Both are examples of heterozygous genotypes.

Both are expressed as a short phenotype.
Both are expressed as a short phenotype.
Question 8
How are DNA and mRNA related? (1 point)
Responses

DNA is used as a template to make mRNA.
DNA is used as a template to make mRNA.

If there has been a mutation in mRNA, the DNA will not change.
If there has been a mutation in mRNA, the DNA will not change.

mRNA is used as a template to make DNA.
mRNA is used as a template to make DNA.

If there has been a mutation in DNA, the mRNA will not change.
If there has been a mutation in DNA, the mRNA will not change.
Question 9
Three-letter segments of mRNA code for specific(1 point)
Responses

chromosomes
chromosomes

amino acids
amino acids

disorders
disorders

sickle cells
sickle cells
Question 10
Which statement is the most accurate definition of mutation? (1 point)
Responses

A mutation is a change in DNA that can change the structure and function of genetic information.
A mutation is a change in DNA that can change the structure and function of genetic information.

A mutation is a change in DNA that only causes survival advantages.
A mutation is a change in DNA that only causes survival advantages.

A mutation is a change in DNA that only causes diseases.
A mutation is a change in DNA that only causes diseases.

A mutation is a change in DNA that can change the structure of genetic information and cause diseases.
A mutation is a change in DNA that can change the structure of genetic information and cause diseases.
Question 11
A mutation that causes abnormal cell division can result in (1 point)
Responses

sickle cell anemia
sickle cell anemia

skin cancer
skin cancer

clogged arteries
clogged arteries

cystic fibrosis
cystic fibrosis
Question 12
Which sentence most accurately describes the daily growth rate of plants? (1 point)
Responses

sum of individual plant heights divided by number of days
sum of individual plant heights divided by number of days

average plant height divided by total number of plants
average plant height divided by total number of plants

average change in plant height divided by number of days
average change in plant height divided by number of days

sum of individual plant heights divided by total number of plants
sum of individual plant heights divided by total number of plants
Question 13
Which example best describes the influence of genetic factors? (1 point)
Responses

A horse is the same size as its parents and similar height to other horses of the same breed that it lives with on a farm.
A horse is the same size as its parents and similar height to other horses of the same breed that it lives with on a farm.

A shrub with good access to sunlight is taller than other shrubs located in shaded areas.
A shrub with good access to sunlight is taller than other shrubs located in shaded areas.

The adult offspring of a pair of deer is shorter than its parents and obtained fewer nutrients when it was younger.
The adult offspring of a pair of deer is shorter than its parents and obtained fewer nutrients when it was younger.

A corn plant is the same height as another corn plant of a different variety.
A corn plant is the same height as another corn plant of a different variety.
Question 14
Which experimental procedure would provide the best evidence for the effect of light on plant growth? (1 point)
Responses

Measure plants of the same variety grown in environments that receive different amounts of light.
Measure plants of the same variety grown in environments that receive different amounts of light.

Measure plants receiving different amounts of light in their natural environments.
Measure plants receiving different amounts of light in their natural environments.

Plant seeds in different soils and expose them to different amounts of light, then measure plant growth.
Plant seeds in different soils and expose them to different amounts of light, then measure plant growth.

Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.
Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.
Question 15
A family raises a species of fish in a pond. At the end of each summer, the family sells the fully grown fish. One year, the family notices that the fish are smaller than they had been the previous year. Which statement best explains this observation?(1 point)
Responses

There was more space in the pond this year than last year.
There was more space in the pond this year than last year.

There was less food available in the pond this year than last year.
There was less food available in the pond this year than last year.

The type of fish in the pond this year tended to be smaller than the type of fish last year.
The type of fish in the pond this year tended to be smaller than the type of fish last year.

There were fewer fish this year than there were last year.
There were fewer fish this year than there were last year.
Skip to navigation

1 answer

Here are the answers to your questions:

  1. What is a gene?

    • Answer: a section of DNA that encodes a specific protein

  2. Which option contains all of the other options listed?

    • Answer: chromosome

  3. In pea plants, the allele for purple flowers, P, is dominant over the allele for white flowers, p. Which conclusion about phenotype and genotype is possible?

    • Answer: If a plant has white flowers, then its genotype must be pp.

  4. What is a phenotype of an organism?

    • Answer: an observable trait

  5. What is an allele?

    • Answer: a form of a gene

  6. How do the terms genotype and phenotype relate?

    • Answer: An organism's genotype leads to its phenotype.

  7. How are the plant height genotypes TT and Tt similar?

    • Answer: Both are expressed as a tall phenotype.

  8. How are DNA and mRNA related?

    • Answer: DNA is used as a template to make mRNA.

  9. Three-letter segments of mRNA code for specific

    • Answer: amino acids

  10. Which statement is the most accurate definition of mutation?

    • Answer: A mutation is a change in DNA that can change the structure and function of genetic information.

  11. A mutation that causes abnormal cell division can result in

    • Answer: skin cancer

  12. Which sentence most accurately describes the daily growth rate of plants?

    • Answer: average change in plant height divided by number of days

  13. Which example best describes the influence of genetic factors?

    • Answer: A horse is the same size as its parents and similar height to other horses of the same breed that it lives with on a farm.

  14. Which experimental procedure would provide the best evidence for the effect of light on plant growth?

    • Answer: Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.

  15. A family raises a species of fish in a pond. At the end of each summer, the family sells the fully grown fish. One year, the family notices that the fish are smaller than they had been the previous year. Which statement best explains this observation?

    • Answer: There was less food available in the pond this year than last year.

Feel free to ask if you have any more questions!