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
Georgia [21]
3 years ago
7

The relative location of four genes on a chromosome can be mapped from the following data on crossover frequencies Genes B and D

Frequency of Crossover 5% Cand A 15% A and B 30% C and B 45% Cand D 50% Which of the following represents the relative positions of these four genes on the chromosome? 1. ABCD 2. ADCB 3. CABD 4. CBAD
Biology
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

3. CABD

Explanation:

The gene mapping refers to providing position to the genes on the chromosomes.  The first gene map was constructed by the Alfred Sturtevant on the basis of recombinant produces or recombination frequency which was calculated.

The gene mapping refers to providing position to the genes on the chromosomes.

In the given question to construct gene map:

1. Look for the highest recombination frequency that is 50% between the C and D.

2. Now look for second-highest value and place the gene accordingly.

3.Similarly, place the genes in the decreasing order of recombination frequency and this will result that the sequence of the genes is- CABD.

Thus, Option-3 is correct.

You might be interested in
A surface wave on ocean surface is<br> an example of an
docker41 [41]
Salutations!

A surface wave on ocean surface is an example of an _______.

A surface wave on ocean surface is an example of an mechanical wave. Mechanical waves are waves that need a substance of medium for the wave's propagation is called mechanical wave.

Hope I helped :D
6 0
3 years ago
What will happen to the universe billions of years from now?
lorasvet [3.4K]
There's no any exact scientific results and nobody currently know what will exactly happen, but some scientists suggested that the sun might expand and dies that leads to the end of the world but some says there will be a new sun being born and like that.
7 0
3 years ago
Read 2 more answers
Independent assortment occurs only in cells that are heterozygous for two genes (AaBb) and not in cells that are completely homo
fomenos

Answer:

False

Explanation:

Gregor Mendel, who was referred to as the FATHER OF GENETICS, discovered the principles that governs heredity. One of those principles which he called LAW OF INDEPENDENT ASSORTMENT states that the alleles of a gene randomly segregates into gametes independently of the alleles of another gene. This means that during gamete formation (meiosis), the separation of the alleles of one gene doesn't affect the separation of the alleles of another gene.

Mendel discovered this principle when he worked with two genes that was responsible for two distinct characters. Hence, in a cell that contains two genes responsible for two different characters in the organism, independent assortment will always occur during gamete formation. Although, in an organism that is homozygous for both traits (AABB or aabb), only one type of allelic combination will be produced in the gamete. However, the alleles will still randomly align and separate independently of one another during Metaphase and Anaphase stages of meiosis.

4 0
3 years ago
Read 2 more answers
Is neon different from oxygen?And how is it different? Please explain.
EleoNora [17]

Neon is a member of the noble gas family. Other elements in this family includes <span>helium, argon, krypton, xenon, </span>and <span>radon. </span>These gases are in Group 18 (VIIIA) of the periodic table. The periodic table is a chart that shows how chemical elements are related to each other. The noble gases are sometimes called the inert gases. This name comes from the fact that these elements do not react very readily. In fact, compounds exist for only three noble gases—krypton, radon, and xenon. Chemists have yet to prepare compounds of helium, neon, or argon.

Neon was discovered in 1898 by British chemists William Ramsay (1852-1916) and Morris Travers (1872-1961). It occurs naturally in the atmosphere, but only in very small amounts.

<span>SYMBOL </span>
Ne

<span>ATOMIC NUMBER </span>
10

<span>ATOMIC MASS </span>
20.179

<span>FAMILY </span>
Group 18 (VIIIA) 
Noble gas

<span>PRONUNCIATION </span>
NEE-on

<span>
<span>

</span></span>
3 0
3 years ago
why are the polio virus unable to reproduce if their DNA base sequence is different from the normal virus?
maks197457 [2]

Answer:

When the virus infects a cell, the RNA genome enters the cell and programs it to make new virus particles. These virus particles are released from the cell and go on to infect new cells. In humans, poliovirus is ingested, and replicates in cells of the gastrointestinal tract.Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).RNA viruses generally have very high mutation rates compared to DNA viruses, because viral RNA polymerases lack the proofreading ability of DNA polymerases. The genetic diversity of RNA viruses is one reason why it is difficult to make effective vaccines against them.

5 0
2 years ago
Other questions:
  • URGENT!! I need this before tomorrow, please! How does the polar jet stream affect temperature and precipitation in North Americ
    6·1 answer
  • What does the cell theory state? Name the three scientists mainly responsible for developing the cell theory.
    13·1 answer
  • Three parts of a nucleotide
    12·1 answer
  • The phenomenon causing the greenhouse effect is that ________ in the lower atmosphere selectively absorbs reradiated ________ ra
    13·2 answers
  • Any and all of the actions performed by an organism, often in response to its environment or to the actions of another organism.
    13·1 answer
  • What is purpose of cellular respiration.
    6·2 answers
  • What is NOT a solid waste ? A.Methane B.Grass clipping and leaves C.old cell phones
    14·2 answers
  • Chemical bonds are broken in which molecules?
    7·1 answer
  • Which part of a flower produces pollen?<br> a. Ovary<br> b. Seed<br> C. Stigma<br> d. Anther
    12·2 answers
  • which of the following describes the function of the chloroplast? view available hint(s)for part e hint 1for part e. review the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!