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Yuliya22 [10]
3 years ago
14

Which two scientists are accredited with correctly deducing the double helix model of dna.

Biology
1 answer:
Vika [28.1K]3 years ago
4 0

Answer:

James Watson and Francis Crick

Explanation:

Watson, Crick, Franklin, and Wilkins were four scientists that discovered the double-helix structure of DNA, which served as the foundation for modern biotechnology.

Franklin used X-ray crystallography at King's College London to acquire pictures of DNA, a notion previously proposed by Maurice Wilkins. Franklin's photographs led James Watson and Francis Crick to develop their renowned two-strand, or double-helix, model.

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you are measuring recombination between three genes: dbt, mfn2 and aspm. the recombination fraction between the dbt and mfn2 is
Katarina [22]

The best explanation for this is 2.When looking atypBT and ASPM, some individuals counted as parental are actually double recombinant

The sum of the two intervening distances is larger than the distance between the outside genes DBT and ASPM (less than 33 map units). Why? because not all of the recombination events (double crossovers) are taken into account by the calculated distance between DBT and ASPM.

Thus, the map distance would have been greater if there were more double recombinants. Again, the map distance would decrease if the number of parents was higher. The map distance is lower here than anticipated. This indicates that the number of parents is higher than it ought to be.

Therefore, the best choice is 2.

know more about mapping here: brainly.com/question/15014414

#SPJ4

(complete question)

You are measuring recombination between three genes: DBT, MEN2 and ASPM. The recombination fraction between the DBT and MFN2 is 15% and between MFN2 and ASPM is 18%: However, the recombination fraction between DBT and ASPM is slightly smaller than, but close to, 33%. What is the best explanation for this?

  1. One of these genes may be on different chromosomes than the other two but this fact is masked because of double recombinants
  2. When looking atypBT and ASPM, some individuals counted as parental are actually double recombinant
  3. When looking at DBT and ASPM, some individuals counted as double recombinants are actually parental
  4. DBT and ASPM actually assort independently
7 0
1 year ago
The shape of DNA is called a __double____ _____helix______.
german
Double helix like a spiral ladder
6 0
3 years ago
Match Column A with Column B
MA_775_DIABLO [31]

Answer:

3.1.1 = G

3.1.2 = C

3.1.3 = F

3.1.4 = I

3.1.5 = H

3.1.6 = A

3.1.7 = N

3.1.8 = E

3.1.9 = B

3.1.10 = M

Explanation:

- 3.1.1

Cytokinesis is the process whereby the cytoplasm of a cell divides into two in order to accommodate the already divided nucleus.

- 3.1.2

Cancer is a medical condition that means an uncontrolled division or growth of cells.

- 3.1.3

Metaphase is a stage of mitosis where chromatids line up at the equator of the cell i.e cell plate.

- 3.1.4

Centromere is a point where sister chromatids i.e. replicated chromosomes are joined before separation in the anaphase stage.

- 3.1.5

Tumour is the term given to a mass of cancerous cells. Cells repeatedly divide without control to form a mass called tumour.

- 3.1.6

Carcinoma is a type of skin cancer or rather a cancer that begins in the skin.

- 3.1.7

The cell cycle involves the interphase and mitotic phase. Interphase stage is the stage where the cell grows, multiplies its genetic material and generally prepare while mitosis is the nuclear division.

- 3.1.8

Carcinogens are biological or chemical substances that causes cancers. They are said to be factors that induce cancer.

- 3.1.9

Benign tumor are mass of cancerous cells that do not spread to other parts.

- 3.1.10

A chromatid is the half part of a replicated chromosome. Together, they are called SISTER CHROMATIDS.

8 0
3 years ago
Sodium chloride breaks down into sodium and chlorine. Why is this process classified as a chemical reaction?
Jlenok [28]

Answer:

C) Is the right answer

Explanation:

chemical reactions occur when a substance is changed into a whole 'nother substance, and cannot be changed back.

how do I know this?

I just learned it today... UwU

I hope this helps!!

3 0
3 years ago
What do adenine, ctyosine, guanine, thymine, and uracil have in common
Goshia [24]

Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. ... Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.

8 0
3 years ago
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