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Ray Of Light [21]
3 years ago
9

Rosalind Franklin contribute to the understanding of DNA by

Biology
1 answer:
IRINA_888 [86]3 years ago
4 0
Rosalind Franklin contributed to the understanding of DNA by discovering It's shape and structure. 
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Group name given to the first life forms which developed on earth about 3.8 billion years ago
aleksandrvk [35]
The first living things on Earth, single-celled micro-organisms<span> or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have </span>first<span> appeared on </span>Earth<span> almost four billion years ago, just a few hundred million years after the formation of the </span>Earth<span> itself.</span>
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3 years ago
Why would it be wise for a woman carrying the hemophilia gene to keep her son from being circumcised?
xenn [34]

Answer:

Because the probability of hemophilia would be 1:4

Explanation:

Hemophilia is a disease that comes with a sex chromosome (pair 46).

It is a recessive allele associated with chromosome X, women have two X chromosomes they can carry it, but they don't have it because they have another dominand allele non-hemophilic.

If you draw a Punnet square with a non-hemophilic father and a carrying mother, you'll found you have 1:4 chances of having a baby boy with hemophilia.

Carrying mother = X(H)X(h)

Father = X(H) Y

8 0
3 years ago
Bodo
Arlecino [84]

Answer:

Saliva lubricates and moistens these food particles

Explanation:

As teeth help to break down large pieces of food into lots of smaller pieces, saliva is released and mixes with the smaller food pieces. Saliva lubricates and moistens these food particles such that a ball-like mixture of food and saliva that is known as a bolus is formed, which can then be easily swallowed.

7 0
2 years ago
Single stranded with a helix shape
slega [8]

Answer:

Both A and B

Explanation:

Because RNA is single stranded and the DNA has a helix shape

5 0
2 years ago
Describe the difference between Microevolution and Macroevolution
KengaRu [80]
Microevolution<span> happens on a small scale (within a single population), while </span>macroevolution<span> happens on a scale that transcends the boundaries of a single species. Despite their </span>differences<span>, evolution at both of these levels relies on the same, established mechanisms of evolutionary change: mutation.</span>
3 0
3 years ago
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