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melamori03 [73]
3 years ago
7

Dr. mclear is a scientist studying heredity. she wants to isolate the basic unit for the transmission of heredity, which is a(n)

_____.
Biology
1 answer:
AlekseyPX3 years ago
5 0
I believe the answer would be gene.
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Answer: A

Explanation: Vaccines create memory cells with a weak version of the pathogen, so when they meet that pathogen again the body can respond more quickly and more efficiently since they have already been exposed to the pathogen.

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What type of trait prevents the other type from being seen?
stich3 [128]
The answer would be dominant
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Place a single word into each sentence to make it correct, then place each sentence into a logical paragraph order. Hemodialysis
Yuliya22 [10]

Answer:

Hemodialysis is the extracorporeal cleansing of wastes from the blood.

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Hemodialysis is the process of kidney dialysis. This process is used for the purification of blood. Extracorporeal blood purification includes removal of waste product such as urea , water and toxic elements from patients body. This process is used when patient's kidney is not working properly.

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3 years ago
Why do plant cells have chloroplasts, but animal cells do not
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Explanation:

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6 0
3 years ago
Species a diverged from species b 60,000 years ago. On a particular gene, they have 15 nucleotide differences. How many nucleoti
a_sh-v [17]

The given question says that b species diverged around 60,000 year ago from species a. Since the divergence, they have a nucleotide difference of 15 nucleotide.

We need to find out the nucleotide difference in another 240,000 year, which means a total of 300,000 year since divergence.

The nucleotide difference in 60,000 years = 15 nucleotide.

The nucleotide difference in 1 year =\frac{15}{60,000}  nucleotide.

The nucleotide difference in 300,000 years = \frac{15}{60,000}\times 300,000 nucleotide.

The nucleotide difference in 300,000 years = 75 nucleotide.

Hence, after another 240,000 years or 300,000 years since divergence, the species and species b would show a difference of 75 nucleotide.

In another 240,000 years, there would be 60 nucleotide difference, as 15 of the nucleotide are already different in initial 60,000 years from the total of 75 nucleotide difference in 300,000 years. So, 60 (75-15) nucleotide difference would be observed in next 240,000 years.


4 0
3 years ago
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