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kolbaska11 [484]
3 years ago
5

1. Describe at least two experiments and discuss how they helped determine that DNA and not protein was the hereditary material.

Biology
1 answer:
Amiraneli [1.4K]3 years ago
8 0
Umm well I was thinking
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What is a population's age structure? give an example
xxMikexx [17]
Population age structure is a summary of the number of individuals of each age in the population. An example is, In 2002, 30% of the worlds population was under 15 years old.   <span />
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3 years ago
Two genes, A and B, are located 30 map units apart. A mating between an individual homozygous dominant for both traits and one h
Westkost [7]

Answer:

35%

Explanation:

If two genes are 30 map units apart, 30% of the produced gametes will be recombinant.

A mating between an individual homozygous dominant for both traits (AB/AB) and one homozygous recessive for both traits (ab/ab) is conducted.

The F1 will be heterozygous for both genes: AB/ab.

The F1 progeny is then test-crossed to a homozygous recessive individual:

<h3>AB/ab X ab/ab</h3>

<u>The possible offspring will be:</u>

  • Parental (70%): AB/ab and ab/ab
  • Recombinant (30%): Ab/ab and aB/ab

Since 30% of all the gametes produced by the F1 individual will be recombinant, 70% will be parental. As there are two types of parental gametes, each of them will have a frequency of 35%.

<u>The offspring that will have a dominant phenotype for both traits has the genotype AB/ab with a proportion of 35%.</u>

8 0
3 years ago
What use do u think extracting DNA might have today
Ket [755]
  <span>Extraction of DNA is important because of many reasons. With the ability to remove DNA from an organism, scientists can observe, manipulate, and classify the DNA. 

Scientists can identify genetic disorders or diseases from studying DNA. 

Scientists can possibly find cures for these causes by manipulating or experimenting with this DNA. 

Scientists can accurately sort organisms into classes because of DNA uniqueness. If we didn't have DNA extraction, it would be a lot harder to decide which organisms are different from each other. 

Scientists can genetically engineer some organisms to produce beneficial things. A common example is that of insulin. Scientists can genetically engineer insulin production so that people with diabetes can live longer.</span>
4 0
3 years ago
Read 2 more answers
Species that are multi-celled, have nuclei, and photosynthesize can be found only in
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Answer:

yooo I have the same question

Explanation:

its animalia and plantae

4 0
2 years ago
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Dysentery can lead to ________ and/or organ failure if medical attention is not sought in time.
klasskru [66]

Answer:

Option-B

Explanation:

Dysentery is an abnormal condition that is caused by the infection of the intestine in humans. The infection could be caused by the bacteria or the amoeba.

The disease can be characterized by the cramps in the stomach, diarrhea, and the loss of blood through feces.

Untreated dysentery can lead to the loss of a large amount of blood through feces and will lower the amount of blood in humans.

This severe loss of blood will give rise to another disease called hypovolemic shock is which the heart fails to pump enough blood to the organs due to which the other organs of the body can fail to work properly.  This condition can lead to death.

Thus, Option-B is correct.

4 0
3 years ago
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