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yanalaym [24]
3 years ago
7

Which statement about the earth’s atmosphere is true? Please help

Biology
1 answer:
Hatshy [7]3 years ago
4 0

Answer:

D. in the past few decades, carbon dioxide levels have been falling.

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The forward and reverse PCR primers used for the amplification of a VNTR locus on chromosome number 4 are 20 bases and 21 bases
zimovet [89]

The repeats which occur together on a chromosome are referred to as VNTR. The length of each repeat is 60bp.

The first primer is 20bp and is 53 bp away from 1st repeat. Therefore, the total length of sequence amplified by the first primer till 1st repeat = 20+53 = 73bp. Beyond this point 6 repeats on 60 bp are present, hence, the length becomes = 73 + (60X6) = 433bp.

Now the reverse primer which is 21bp in length is located 28bp from the repeat on its side. Reverse primer comes from the opposite direction, so it must be present after the 6 repeats.

The total length of the amplified region = 433 + 28 + 21 = 482 bp.

5 0
3 years ago
Can someone help me with these questions?
Black_prince [1.1K]

Answer: 3. adenine (A, green), thymine (T, red), cytosine (C, orange), and guanine (G, blue). 4. adenine (A), cytosine (C), and guanine (G) — are also found in DNA. 5. A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T). 6.  food crops like soy and corn that have been genetically modified for pest and herbicide resistance. These crops are widely known as “GMOs” (genetically modified organisms). 7. There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine. brainliest?

Explanation:

8 0
3 years ago
The most common cause of anemia is __________. the most common cause of anemia is __________. smoking illegal use of blood dopin
bekas [8.4K]
The most common cause of anemia is iron deficiency. 
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3 years ago
 Female peacocks typically chose to mate with males who have the most brightly colored feathers. This is an example of
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its B or E

Explanation:

4 0
3 years ago
Did the enzymes from Claire’s small intestine break down the protein at a low, normal, or high rate? Same for lipids and carbohy
harina [27]

Given the information available to us through the image provided, we can see that the rate at which Claire's small intestine breaks down the protein, lipids, and carbohydrates is lower than that of a healthy dog.

<h3>What does the graph tell us?</h3>
  • The graph shows Claire's enzyme activity using a yellow line.
  • The red line shows us a healthy dog.
  • In each graph, the yellow line is lower than the red, indicating that Claire's enzyme activity is lower than normal.

Therefore, given that the graphs represent claire's ability to break down these substances using a yellow line that appears to be lower than the red line representing a healthy dog through each substance, we can confirm that Claire breaks them down at reduced rates.

To learn more about lipids visit:

brainly.com/question/233734?referrer=searchResults

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