What is an allele?(1 point)
Responses
a non-inherited trait
a non-inherited trait
a trait that appears in an offspring if one of the parents contributes it
a trait that appears in an offspring if one of the parents contributes it
a variant form of a gene
a variant form of a gene
a trait that can be masked
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.
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 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.
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.
Which statement below correctly describes a component of sexual reproduction?(1 point)
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.
Only dominant alleles are passed to offspring.
Only dominant alleles are passed to 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.
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
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.
To understand this, let's break it down:
In sexual reproduction, offspring receive genetic information from both parents. Each parent has two alleles for each trait. An allele is a variant form of a gene, and it represents a specific version or variant of a trait. For example, the gene for eye color may have alleles for blue eyes and brown eyes.
During reproduction, the parents pass on one allele for each trait to their offspring. This means that the offspring inherits one allele from each parent. The combination of alleles received from both parents determines the traits that the offspring will have.
So, each parent has two alleles per trait, and they pass one allele to their offspring. This ensures that the offspring inherits genetic information from both parents, leading to the variation observed in individuals.