Which statement below correctly describes a component of sexual reproduction?(1 point)

Question

Responses

Each parent has two alleles and they pass both down to their offspring.
Each parent has two alleles and they pass both down to their offspring.

Each parent has two alleles per trait and passes one allele to their offspring.
Each parent has two alleles per trait and passes one allele to their offspring.

One parent passes down the majority of genes an offspring will receive.
One parent passes down the majority of genes an offspring will receive.

Only dominant alleles are passed to offspring.

Answer 1

The correct statement that describes a component of sexual reproduction is:

"Each parent has two alleles per trait and passes one allele to their offspring."

In sexual reproduction, offspring inherit one allele for each trait from each parent, resulting in a combination of alleles.

Answer 2

A student claims that dominant traits are always the most common traits. Is this true? Why or why not?(1 point)
Responses

Yes, dominant traits are called dominant because they are the most common.
Yes, dominant traits are called dominant because they are the most common.

No, dominant traits only show up if they are inherited; how common they are is not influenced by this.
No, dominant traits only show up if they are inherited; how common they are is not influenced by this.

Yes, dominant traits became more common over time as they are passed down from generation to generation; recessive alleles continue to become less common over time.
Yes, dominant traits became more common over time as they are passed down from generation to generation; recessive alleles continue to become less common over time.

No, dominant traits in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.
No, dominant traits in general tend to be less common in the population and continue to persist only because they are dominant over more common recessive alleles.

Answer 3

The correct response is:

"No, dominant traits only show up if they are inherited; how common they are is not influenced by this."

Dominance refers to how alleles interact and not to how frequently a trait occurs in a population. A dominant trait can be rare if the allele is not widely inherited, while a recessive trait can be common if many individuals carry the recessive allele. The frequency of traits in a population is influenced by various factors, including genetic drift, selection, and the initial allele frequencies in the gene pool, rather than dominance alone.

Answer 4

What is an allele?(1 point)
Responses

a trait that can be masked
a trait that can be masked

a non-inherited trait
a non-inherited trait

a variant form of a gene
a variant form of a gene

a trait that appears in an offspring if one of the parents contributes it

Answer 5

The correct response is:

"a variant form of a gene."

An allele is one of the different forms of a gene that can exist at a particular locus on a chromosome. Alleles can contribute to the variation in traits among individuals.

Answer 6

Which trait is inherited?(1 point)
Responses

hair length
hair length

freckles
freckles

physical fitness
physical fitness

scars

Answer 7

The correct response is:

"freckles."

Freckles are a genetic trait that can be inherited from parents to offspring, whereas hair length can be influenced by both genetics and environmental factors, physical fitness is primarily influenced by lifestyle choices and environment, and scars are acquired from injuries and are not inherited.