What was the purpose of the field study? keys and kingdoms worksheet

Biology

1 answer:

satela [25.4K]3 years ago

4 0

Answer:

A field study is a general method for collecting data about users, user needs, and product requirements that involves observation and interviewing. Data are collected about task flows, inefficiencies, and the organizational and physical environments of users.

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Achondroplasia is a form of dwarfism in humans. It is caused by a mutant allele of the fibroblast growth factor receptor gene (F

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<h2>The correct answer is explained below:</h2>

Explanation:

According to the question, achondroplasia, a form of dwarfism, is caused by a mutant allele of the fibroblast growth factor receptor (FGFR) encoding gene.
This achondroplasia trait is dominant in nature. This is because presence of a single copy of the mutant allele results in the development of a dwarf phenotype.
Let the dominant mutant allele for the trait be represented by: A.
Let the recessive normal allele for the trait be represented by: a.
The individual with aa genotype is normal.
The individual with Aa genotype shows dwarfism.
The individual with AA genotype dies before birth.
As per the question, two people having achondroplasia have the genotype Aa.
Gametes produced by each of the individuals are, A and a.
Mating these individuals, we get the following possible offspring,

A a

A AA Aa

Phenotype Dies Dwarf

a Aa aa

Phenotype Dwarf Normal

The genotypes and the phenotypes of the possible offspring are represent in the Punnett square above.
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Since the child with AA genotype dies before birth so three (genotypes Aa and aa) out of four possible children survives.

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