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
nydimaria [60]
4 years ago
11

In a hypothetical population of 1000 frogs there exists a gene, d, with two alleles (d and d). 280 of the frogs are homozygous d

ominant (dd), and 220 are homozygous recessive (dd). what is the frequency of heterozygotes in the population?
Biology
2 answers:
Otrada [13]4 years ago
8 0
To answer this question, subtract from the total population of 1000 the homozygous dominant (DD) frogs of 280 and the homozygous recessive (dd) frogs of 220, and you are left with 500 frogs that by default are <span>heterozygotes (dD). The frequency of these frogs would be 500/1000 = 0.5</span>
Makovka662 [10]4 years ago
7 0

Answer:

The frequency of heterozygotes is 0.5

Explanation:

The frequency of heterozygotes can be get from the Weinberg equation:

p + q = 1

The number of individuals = 1000

The frequencies of dominant (DD) = q = 280/1000 = 0.28

The frequencies of recessive (dd) = p = 220/1000 = 0.22

The frequency of heterozygotes is equal to:

q + p = 0.28 + 0.22 = 0.5

You might be interested in
Which organelle houses and protects the DNA?
masya89 [10]

Answer:

Explanation:

The nucleus is surrounded by a membrane called the nuclear envelope, which protects the DNA and separates the nucleus from the rest of the cell.

5 0
3 years ago
Which statement about anorexia nervosa and bulimia nervosa is true?
Harrizon [31]

Answer:

a. Approximately half of those with anorexia nervosa go on to develop bulimia nervosa, indicating that the two disorders may not be distinct but may represent phases of the same eating disorder.

5 0
3 years ago
_____ are simple sugars. Monosaccharides Polysaccharides Disaccharides Lipids
Rina8888 [55]
Glucose In the blank, they are called monosaccharides
3 0
3 years ago
Read 2 more answers
Photosynthesis requires a supply of CO2 as well as H2 O and sunlight. How do plants obtain these resources? (Hint: refer to plan
Triss [41]

Answer:

CO2 is supplied by mammals and other living animals exhaling, producing CO2 this is absorbed through their leaves, and stems

H2O is supplied by the water cycle, nearby rivers, oceans, creeks etc. This is soaked up through their roots. Excess sugars are also stored in the roots as food.

Sunlight is provided in the atmosphere and the chlorophyll absorbs this.

Explanation:

3 0
3 years ago
A non-random influence affecting which species survives or reproduces is called:
Lyrx [107]

A non random influence affecting who survives or reproduces is selective pressure. A selective pressure is considered to be a phenomenon in which behaviors of the living organisms are being driven to evolution and the natural selection in which they are also divided in to two types.

4 0
4 years ago
Other questions:
  • What are some reasons for immunodeficiency?
    13·1 answer
  • Why the answer b is correct?
    7·1 answer
  • One child of female i-3 has albinism. what is the probability that any of the other four children are carriers of the allele for
    13·2 answers
  • The main function of organelles is
    11·1 answer
  • Which statement about heat and thermal energy is true? A. Scientists use both terms to describe how hot or cold something is. B.
    9·1 answer
  • PLEASE HELP, ASAP, I WILL GIVE BRAINIEST, NO LINKS OR YOU WILL BE REPORTED!
    13·2 answers
  • Summarize the four steps to natural selection
    7·1 answer
  • The bands on Jupiter are caused by its ________.
    5·1 answer
  • g Electron flow down the electron-transport chain leads to the transport of proteins: Group of answer choices from the matrix to
    14·1 answer
  • 5. Based on the data in Table 1, which of the following is the earliest time point at which there is a statistical
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!