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Dominant & Recessive Traits Video Lecture - NEET
FAQs on Dominant & Recessive Traits Video Lecture - NEET
| 1. What are dominant and recessive traits? |  |
Ans. Dominant and recessive traits are terms used in genetics to describe the inheritance of certain characteristics or traits. Dominant traits are those that are expressed or seen when an individual carries one or two copies of the dominant allele. Recessive traits, on the other hand, are only expressed when an individual carries two copies of the recessive allele.
| 2. How are dominant and recessive traits inherited? | |
Ans. Dominant and recessive traits are inherited through the passing of genes from parents to their offspring. Each parent contributes one copy of each gene to their offspring. If a dominant allele is present, it will be expressed in the offspring regardless of the other allele. In the case of recessive traits, both copies of the gene must be recessive for the trait to be expressed in the offspring.
| 3. Can dominant traits skip generations? | |
Ans. Yes, dominant traits can skip generations. This can happen if an individual carrying the dominant allele does not pass it on to their offspring, or if the dominant allele is not expressed due to the presence of another dominant allele. Additionally, if an individual carrying the dominant trait does not have children, the trait may not be observed in subsequent generations.
| 4. Are all traits either dominant or recessive? | |
Ans. No, not all traits are either dominant or recessive. Some traits exhibit incomplete dominance, where neither allele is completely dominant over the other. In these cases, the phenotype of the offspring is a blend of the phenotypes of the parents. Additionally, there are traits that are influenced by multiple genes and environmental factors, making their inheritance more complex.
| 5. Can dominant traits be more common in a population? | |
Ans. Yes, dominant traits can be more common in a population. This is because dominant traits are expressed even if an individual carries only one copy of the dominant allele. Recessive traits, on the other hand, require both copies of the gene to be recessive for the trait to be expressed. As a result, dominant traits may appear more frequently in a population compared to recessive traits.
Text Transcript from Video
welcome to moomoomath and science in
this video I'd like to talk about
dominant human traits traits in humans
can be either dominant or recessive a
dominant trait masks or covers up a
recessive trait and a recessive trait
only appears if you inherit two
recessive alleles as you go through this
list of dominant traits count how many
you have let's begin with a low resting
heart rate is dominant from a high s
resting heart rate a widow's peak is
dominant over a straight hair line
facial dimples is dominant over no
facial dimples your hair going in a
clock wise direction left to right is
dominant over counterclockwise hair a
cleft chin is dominant over a smooth
chin an extra finger or toe is dominant
over normal a straight thumb dominant
over a Hitchhiker's thumb freckles are
dominant over no freckles short fingers
is dominant over normal-sized fingers
believe it or not webbed fingers
dominant over normal and finally a Roman
nose is dominant over a less prominent
nose with a bridge I had 6 dominant
trait be curious how many you had anyway
thanks for watching and I hope you
enjoyed dominant human traits remember
moomoomath uploads a new math and
science video every day please subscribe
and share
this video I'd like to talk about
dominant human traits traits in humans
can be either dominant or recessive a
dominant trait masks or covers up a
recessive trait and a recessive trait
only appears if you inherit two
recessive alleles as you go through this
list of dominant traits count how many
you have let's begin with a low resting
heart rate is dominant from a high s
resting heart rate a widow's peak is
dominant over a straight hair line
facial dimples is dominant over no
facial dimples your hair going in a
clock wise direction left to right is
dominant over counterclockwise hair a
cleft chin is dominant over a smooth
chin an extra finger or toe is dominant
over normal a straight thumb dominant
over a Hitchhiker's thumb freckles are
dominant over no freckles short fingers
is dominant over normal-sized fingers
believe it or not webbed fingers
dominant over normal and finally a Roman
nose is dominant over a less prominent
nose with a bridge I had 6 dominant
trait be curious how many you had anyway
thanks for watching and I hope you
enjoyed dominant human traits remember
moomoomath uploads a new math and
science video every day please subscribe
and share
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Nov 15, 2024 Last updated |
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