Which is the most likely explanation for a child exhibiting a heritable trait that neither parent exhibits?(1 point)

Question

Responses

A mutation occurred, and the child exhibits a new trait due to the mutation.
A mutation occurred, and the child exhibits a new trait due to the mutation.

The parents have recessive alleles, and the child inherited a dominant allele.
The parents have recessive alleles, and the child inherited a dominant allele.

A grandparent exhibits the trait, and the child inherited it directly from that person.
A grandparent exhibits the trait, and the child inherited it directly from that person.

The trait is recessive, and the child inherited a recessive allele from each parent.
The trait is recessive, and the child inherited a recessive allele from each parent.

Answer 1

The most likely explanation for a child exhibiting a heritable trait that neither parent exhibits is:

The trait is recessive, and the child inherited a recessive allele from each parent.

This scenario can occur when both parents carry one recessive allele for the trait (even if they do not express it themselves, as they also possess a dominant allele) and pass that recessive allele on to their child, resulting in the child expressing the recessive trait.

Answer 2

Which process would lead to offspring with the exact same genetic information as the parent? (1 point)
Responses

A plant growing from a seed.
A plant growing from a seed.

A bird laying an egg.
A bird laying an egg.

A bacterium splitting in two.
A bacterium splitting in two.

A tree growing from the stump of another tree.

Answer 3

The process that would lead to offspring with the exact same genetic information as the parent is:

A bacterium splitting in two.

This process is known as binary fission, which is a form of asexual reproduction. In binary fission, the bacterium duplicates its DNA and then divides into two identical daughter cells, each with the same genetic information as the parent.

Answer 4

Question
Some flatworms reproduce through fragmentation. What is a disadvantage of this method? (1 point)
Responses

It is a much more complex process than sexual reproduction.
It is a much more complex process than sexual reproduction.

It is a process that leads to lower genetic diversity than sexual reproduction.
It is a process that leads to lower genetic diversity than sexual reproduction.

It is a process that does not result in many offspring relative to sexual reproduction.
It is a process that does not result in many offspring relative to sexual reproduction.

It is a very slow process relative to sexual reproduction.

Answer 5

The disadvantage of fragmentation as a method of reproduction is:

It is a process that leads to lower genetic diversity than sexual reproduction.

Fragmentation results in offspring that are genetically identical to the parent (clones), which limits genetic variation. This lack of genetic diversity can make a population more susceptible to diseases and environmental changes compared to populations that reproduce sexually, which typically have greater genetic variation.

Answer 6

The process by which a modified stem or root of a parent plant grows offspring that remain attached is called(1 point)
Responses

vegetative reproduction.
vegetative reproduction.

binary fission.
binary fission.

tuber reproduction.
tuber reproduction.

fragmentation.

Answer 7

The process by which a modified stem or root of a parent plant grows offspring that remain attached is called:

vegetative reproduction.

This method allows plants to produce new individuals from their stems, roots, or leaves while remaining connected to the parent plant.

Answer 8

Select the statement that is true.(1 point)
Responses

Sexual reproduction produces more offspring than asexual reproduction.
Sexual reproduction produces more offspring than asexual reproduction.

Asexual reproduction occurs when two gametes fuse.
Asexual reproduction occurs when two gametes fuse.

Sexual reproduction requires a single parent.
Sexual reproduction requires a single parent.

Asexual reproduction is a simpler process than sexual reproduction.

Answer 9

The statement that is true is:

Asexual reproduction is a simpler process than sexual reproduction.

Asexual reproduction typically involves simpler processes such as mitosis or budding and does not require the complex mating behaviors and processes associated with sexual reproduction.

Answer 10

Many plants can reproduce both sexually and asexually. Which statement below best describes why one method might be more beneficial than the other?(1 point)
Responses

Sexual reproduction guarantees that two plants will provide nourishment for new plantlets.
Sexual reproduction guarantees that two plants will provide nourishment for new plantlets.

Asexual reproduction allows plants to skip the process of finding a mate.
Asexual reproduction allows plants to skip the process of finding a mate.

Sexual reproduction provides genetic variation to plants to help them survive in a changing environment.
Sexual reproduction provides genetic variation to plants to help them survive in a changing environment.

Asexual reproduction allows plants to avoid having to care for their offspring.

Answer 11

The statement that best describes why one method might be more beneficial than the other is:

Sexual reproduction provides genetic variation to plants to help them survive in a changing environment.

Genetic variation resulting from sexual reproduction can enhance a population's ability to adapt to changing environmental conditions, diseases, and other challenges, whereas asexual reproduction produces genetically identical offspring, which may be less adaptable.