The trait that is inherited is freckles. Hair length can have genetic components, but it is also influenced by environmental factors and individual variations. Scars are acquired injuries and not inherited traits. Physical fitness is influenced by both genetics and lifestyle choices.
Which trait is inherited?(1 point)
Responses
hair length
hair length
freckles
freckles
scars
scars
physical fitness
9 answers
What is an allele?(1 point)
Responses
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
a trait that appears in an offspring if one of the parents contributes it
a trait that can be masked
a trait that can be masked
a non-inherited trait
Responses
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
a trait that appears in an offspring if one of the parents contributes it
a trait that can be masked
a trait that can be masked
a non-inherited trait
An allele is a variant form of a gene. Alleles can represent different variations of a trait, such as color, height, or other characteristics, that can be inherited from parents.
A student claims that dominant traits are always the most common traits. Is this true? Why or why not?(1 point)
Responses
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.
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.
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Responses
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.
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.
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The correct response is: 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.
Dominance in genetic terms refers to the relationship between alleles, where one allele can mask the expression of another. However, the frequency of a trait in a population is influenced by many factors including genetic drift, natural selection, and the environment, and not solely by whether a trait is dominant or recessive. Therefore, dominant traits are not necessarily the most common traits.
Which statement below correctly describes a component of sexual reproduction?(1 point)
Responses
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 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.
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.
Responses
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 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.
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.
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 that influence their traits.
A chart shows allele combinations for brown/blonde hair: Father’s Mother, Bb; Mother’s Mother, BB; Mother, Bb; Child, bb. What allele combinations are missing?
Father’s Father
(brown hair)
Father’s Mother
(brown hair)
Bb Mother’s Father
(blond hair)
Father’s Mother
(brown hair)
BB
Father’s Father
(brown hair)
Mother
(brown hair)
Bb
Child
(blond hair)
bb
Match each person with the correct allele combination.
(1 point)
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Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Mother’s Father
Father
Father’s Father
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Father’s Father
(brown hair)
Father’s Mother
(brown hair)
Bb Mother’s Father
(blond hair)
Father’s Mother
(brown hair)
BB
Father’s Father
(brown hair)
Mother
(brown hair)
Bb
Child
(blond hair)
bb
Match each person with the correct allele combination.
(1 point)
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Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
Mother’s Father
Father
Father’s Father
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To solve the question regarding the missing allele combinations and match each person with the correct allele combination based on the provided information:
Given:
- Father’s Mother: Bb (brown hair)
- Mother’s Mother: BB (brown hair)
- Mother: Bb (brown hair)
- Child: bb (blond hair)
Since the child has the genotype bb, both parents must have passed down a recessive b allele.
Based on the typical inheritance patterns:
- Father’s Father: This person must have a brown hair genotype. Since the child is bb and the mother (Bb) can only pass a recessive b, the father must be Bb to have the possibility of passing b as well. Thus, his genotype is Bb.
- Mother’s Father: The mother's father must have at least one dominant allele since the mother's mother is BB. Thus, he can be either BB or Bb. Since BB would provide only B to the mother, we assign Bb to the mother's father to ensure that he passes either B or b to the mother.
- Father: The father must also be Bb since he has to contribute a b gene.
So the combinations are:
- Father’s Father: Bb
- Father: Bb
- Mother’s Father: Bb
Here’s a summary of the matchings:
- Mother’s Father - Bb
- Father - Bb
- Father’s Father - Bb
If you correctly match these genotypes in the chart, you will have the complete allele combinations.
1 answer