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ser-zykov [4K]
3 years ago
14

Which of the following best describes the overall purpose of photosynthesis?

Biology
1 answer:
GuDViN [60]3 years ago
3 0

Answer:

the answer is either to use energy from the sun to produce food or to use energy from the sun to produce oxygen

Explanation:

it could be either one of those answers i jus said because in photosynthesis both of those are true. i hope i helped some

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Why is oxygen important in the electron transport pathway and atp synthesis?
kiruha [24]

Answer:

NADH and FADH2 carry electrons to specialized cell membranes,where they are harvested to create ATP.Once the electrons are used, they become depleted and must be removed from the body. Oxygen is essential for this task. Used electrons bind with oxygen; this molecules eventually bind with hydrogen to form water

Explanation:

I hope it helps

5 0
2 years ago
The diagram below shows the structure of a protein. what is the structure labeled A
nydimaria [60]

Answer:

B. An amino acid

Explanation:

Have a great day/night! :3

8 0
2 years ago
What is the probability that the first offspring from the cross listed below will be heterozygous for all loci?
Tanya [424]

Answer and Explanation:

<u>Cross:</u> aa Bb dd Ee x AA bb Dd Ee

We can calculate the probability of getting heterozygous individuals in the progeny by using the <u>product rule</u>. Assuming that these four genes <u>assort independently</u> (<em>events that occur independently from each other</em>), we can infer that the F1 will have the next genotypic proportions for each gene:

1) aa     x     AA

F1) 4/4=1 Aa

2) Bb    x    bb

F1) ½ bb

     ½ Bb

3) dd    x    Dd

F1) ½ dd

     ½ Dd

4) Ee    x    Ee

F1) ¼ EE

    2/4 = ½ Ee

     ¼ ee

So, to know what the probability is that the F1 of being heterozygous for all loci, we must multiply the respective individual probabilities of getting a heterozygous genotype, like this:  

1 Aa   x   ½ Bb   x    ½ Dd    x    ½ Ee = 1/8 AaBbDdEe

                                 

6 0
3 years ago
Which of the following molecules is not required for a PCR reaction? View Available Hint(s) Which of the following molecules is
natita [175]

Answer:

A Ligase

B False

C To separate the double‑stranded DNA

Explanation:

The Polymerase Chain Reaction (PCR) is a technique widely used in molecular biology laboratories in order to make millions of copies of a specific sequence of DNA. PCR requires deoxynucleotide triphosphates (dNTPs) to synthesize new copies of the target DNA fragment, a thermostable DNA polymerase that adds nucleotides to new DNA strands, and primers that attach to complementary ends at each DNA strand. PCR has three phases: 1-Denaturation, where the double-stranded DNA molecule is heated to separate it into two single (separated) strands; 2-annealing, where the temperature is lowered in order to allow the primers to attach each DNA strand, and 3- extension, where the temperature is increased (again), and the thermostable DNA polymerase adds the appropriate dNTPs to new DNA strands. In consequence, annealing occurs at the lowest temperature. Moreover, during the denaturation stage, the temperature is increased at 90–95°C  in order to denature the DNA strands into single strands.

5 0
2 years ago
6. If a cell has a nucleus, then it is a _______ <br><br> ????
marta [7]
It is a eukaryotic cells
7 0
2 years ago
Read 2 more answers
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