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3 years ago

Frederick Griffith made a scientific discovery in 1928. Which best describes the knowledge about genetics before 1928

Biology

1 answer:

iragen [17]3 years ago

5 0

Scientists did not know how traits were inherited.

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What is the definition of a homologus structure

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Organs or skeletal elements of animals and organisms

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In guinea pigs hair straightness or curliness is thought to be governed by a single pair of alleles showing incomplete dominance

Nimfa-mama [501]

Answer:

Frequency of allele S is p $= 0.4939$

Frequency of allele C is q $= 0.666$

The population is not in Hardy-Weinberg equilibrium

Explanation:

Given -

Number of individuals with straight hair $= 244$

Number of individuals with curly hair $= 444$

Number of individuals with Wavy hair $= 312$

Let "p" represents the frequency for allele for straight hair and "q" represents the frequency for allele for curly hair

$p^2$ represents the frequency of genotype "SS"

$p^{2} = \frac{244}{1000} \\= 0.244$

$q^2$ represents the frequency of genotype "CC"

$p^{2} = \frac{444}{1000} \\= 0.444$

$2pq$ represents the frequency of genotype "SC"

$2pq = \frac{312}{1000} \\= 0.312$

Frequency of allele S is p

$= \sqrt{0.244} \\= 0.4939$

Frequency of allele C is q

tex]= \sqrt{0.444} \\= 0.666[/tex]

For being in Hardy Weinberg's equation-

$p+q=1\\$

Substituting the values in above equation, we get -

$0.4939+0.666\neq 1$

hence, the population is not in Hardy-Weinberg equilibrium

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Androgens are hormones that promote the development of ________ characteristics.

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Androgens are hormones that promote the development of male characteristics.

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These are chemical messengers which are secreted into the blood for different functions in the body.

Androgens are sex hormones which are involved in the development of the male reproductive system.

Read more about Androgens here brainly.com/question/7030072

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