1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mashutka [201]
3 years ago
10

Widow's peak (W) is a dominant gene for hairline while a straight hairline is recessive (w). Determine the Phenotype frequency,

Genotype frequency and Allele Frequency if a heterozygous dominant crosses with a homozygous recessive
Biology
1 answer:
SVETLANKA909090 [29]3 years ago
5 0

Answer:

Phenotype frequency ( widow's peak ) = 0.5

Phenotype frequency ( straight hairline ) = 0.5

Genotype frequency ( Ww ) = 0.5

Genotype frequency (ww) = 0.5

Allele frequency ( W ) = 0.25

Allele frequency ( w ) = 0.75

Explanation:

Given, Widow's peak (W) is dominant over straight hairline (w).

Parent 1: heterozygous dominant = Ww

Parent 2: homozygous recessive = ww

When Ww X ww :

     W      w

w  Ww   ww

w  Ww   ww

Half of the offspring are Ww and other half are ww so genotype frequency of Ww is 0.5 and of ww is 0.5. Phenotype ratio for widow's peak (Ww) is 0.5 and for straight hairline (ww) is 0.5.

Allele frequency = Number of that allele / Total number of alleles

f(W) = 2 / 8 = 0.25

f(w) = 6 / 8 = 0.75

You might be interested in
HELP ASAP DUE TONIGHT!!!!
stiv31 [10]

Answer:Over time, carbon-14 decays in predictable ways. And with the help of radiocarbon dating, researchers can use that decay as a kind of clock that allows them to peer into the past and determine absolute dates for everything from wood to food, pollen, poop, and even dead animals and humans.

Explanation:

8 0
3 years ago
If the frequency of an allele is 0.75, how many copies of this allele should be in a population of 300 diploid individuals?
Ray Of Light [21]

I have provided the options below:

a. 150

b. 225

c. 300

d. 450

e. 75

Answer:

150

Explanation:

Hardy-Weinberg law states, the allelic frequencies of a gene that is, q and p follow the relationship p^2+q^2+2pq = 1, if the population is in equilibrium.

Therefore p^2+q^2+2pq = 1, can be used to calculate the percentage of the allelic frequencies i.e. p^2 and q^2

Allelic frequency = 0.75.

Therefore, the percentage of the allele in the population would be given by

0.75^2 = 0.5625 = 56%.

And the total number of individuals with this allele in the population:

number of individuals = 56×300÷100

= 168 or

150 nearest figure.

8 0
3 years ago
After chemical weathering, what happens to the chemical makeup of the weathered rock?
const2013 [10]

Answer:

rock changes its form

Explanation:

Hope was helpful

If yes than plz ❤️

6 0
2 years ago
Base substitutions in coding regions that result in changed amino acids are called
Cerrena [4.2K]
Missense mutations.

Hope this helps!
7 0
3 years ago
Cells are able to remove large amounts of material using what cell process?
ankoles [38]

Answer:

Exocytosis

Explanation:

Exocytosis is the process that allows cells to be able to remove large amounts of material in and out of themselves.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

6 0
2 years ago
Other questions:
  • You visit a huge city with millions of people. If you were to start sampling the cystic fibrosis allele from one generation to t
    6·1 answer
  • A client rescued from a burning building has partial- and full-thickness burns over 40% of the body. which initial physiologic c
    10·1 answer
  • Question 13.
    14·1 answer
  • Which activity is a function of blood?
    7·2 answers
  • Aquatic ecosystems consist of two different layers with respect to light. The photic zone is where light penetrates the water, a
    6·1 answer
  • What process do producers go through to obtain energy?
    14·2 answers
  • If the sequence of bases on the mrna codon is auu what would be the sequence of bases on the trna anticodon
    14·1 answer
  • Ep-28 which is the best precaution against carbon monoxide poisoning?
    8·1 answer
  • Geologic processes that assist in the formation of metamorphic rock include
    6·1 answer
  • What are the two stages of cellular respiration
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!