List all parts and structures from which hair grows

If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera

Kisachek [45]

Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!

7 0

3 years ago

True or false? A mating between a tetraploid individual and a diploid individual produces biologically fit offspring.

Katyanochek1 [597]

A cross between a diploid individual and a tetraploid individual produces triploid offspring. There are many species of plants that are triploid, but those come from crosses between two triploid individuals. In those cases, the chromosomes from one parent match up with the chromosomes from the other parent just fine. The same is not true with a cross of a tetraploid and a diploid. In that case, one third of the chromosomes are unmatch, causing many offspring to die, to be sterile, or to be generally unfit. Long story short, the answer you seek is False.

5 0

4 years ago

A fertilizer company is trying to find a new herbal pesticide to add to its product. Company managers know that peppermint oil o

wlad13 [49]

Answer:

Peppermint oil and morning, peppermint oil and night, lavender oil and morning, lavender oil and night

Step-by-step explanation:

Fertilisers are substances, which could be organic or inorganic, that is added to soil to increase crop yield.

Pesticide can be defined as substances that are used to control pests in an environment. Example of a pesticide includes:

- fungicides,

- herbicides( these are used to kill unwanted plants) and

- insecticides.

From the existing knowledge that the time of day the fertilizer is applied, morning and night affects the pesticide, and the Company managers know that peppermint oil or lavender oil will be used.

The insects should be subjected to the following treatments to effectively compare all combinations of these choices listed above:

- Peppermint oil and morning,

- peppermint oil and night,

- lavender oil and morning,

- lavender oil and night

8 0

3 years ago

Horseshoe crabs are one of the only five living species of arthropods class

Musya8 [376]

C. Arachnida.
hope it's correct.

6 0

3 years ago

Read 2 more answers

At the complete end of cellular respiration, how many molecules of ATP are produced?

Shkiper50 [21]

Hello! The answer to your question would be as followed:

A. 38 molecules of ATP are produced

The ATP yield during aerobic respiration isn't 36-38, but only about 30-32 ATP molecules/ 1 molecule of glucose.

3 0

3 years ago