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IrinaVladis [17]
3 years ago
6

Which question would be asked in a dichotomous key?

Biology
1 answer:
Bingel [31]3 years ago
8 0

Answer:

B. Are the insect’s antennae longer than its head?

Explanation:

Dichotomous key refers to the tool or method which helps the scientist to identify organisms.

It uses a specific series of questions which help in segregation of organisms and ultimately help the scientist to identify the organism on the basis of the observations or properties share by the organism.

Example of a simple dichotomous key is shown below.

Similarly, insects can have antennae longer or shorter than their heads. Thus, the question "Are the insect’s antennae longer than its head?" would help in segregating insects based on their antennae length.

happy to help ya:)

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2 years ago
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In humans, six fingers (f) is the dominant trait; five fingers (f) is the recessive trait. if the father is heterozygous for six
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The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.

<h3>How to calculate genotype of a cross?</h3>

According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.

If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:

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This shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%).

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2 years ago
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