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Grace [21]
2 years ago
15

How do I do this? Like I'm so Confuzzled

Biology
2 answers:
Bingel [31]2 years ago
7 0
I could only answer the first question if it helps

djyliett [7]2 years ago
6 0
Dominant letters are (BB)
Recessive letters are (bb)
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A 75-year-old woman has been advised by her neighbor to take a multivitamin and mineral supplement. what benefit might she get f
shutvik [7]
Knowing that she is already 75 years old, even though we don't know her health conditions, we can conclude that the vitamins might help her to avoid any deficiency related to minerals and vitamins, and it might also help her if she has an alimentary restriction meaning that she can't it a food that contains a needed vitamin or mineral.

Hope it helps,

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7 0
3 years ago
You determine that you have only three copies left of an important DNA fragment, so you decide to amplify it. Using flanking pri
kicyunya [14]

Hello. This question is incomplete. The full question is:

"You determine that you have only 3 copies left of an important DNA fragment, so you decide to amplify it. Using flanking primers, how many PCR cycles would you have to run to generate over one billion (10^9) copies of the fragment? "

Answer:

Approximately 29 cycles of PCR would be required.

Explanation:

As you may already know, PCR is a technique used in molecular biology that allows part of a DNA molecule to be recycled into millions of copies.

PCR allows this replication to be done through cycles. Each PCR cycle lasts about 2 minutes and allows the DNA molecule to undergo the separation of the strands, the binding of the primers and the synthesis of new DNA strands through DNA polymerase. This cycle is usually repeated 32 times, but this number may change depending on the number of copies the researcher thinks is necessary.

In this case, if a researcher wants 10 ^ 9 copies of DNA, he must do the following calculation to find the number of PCR cycles needed:

32 ^ x = 10 ^ 9

x = 28.3 = approximately 29 cycles.

4 0
3 years ago
After salmon spawn and the eggs hatch what percentage of young fish survive to spawn eight years later
Wittaler [7]
Not very many, as most would get mauled and eaten by bears and other predators
4 0
3 years ago
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Alina [70]
B:similar diet :) hope that helps
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What book should I read to enrich my biology knowledge?
Ulleksa [173]
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