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SashulF [63]
3 years ago
7

Which of the following correctly describes what the parts of the DNA molecule are made of? (Select all that apply.)

Biology
1 answer:
Taya2010 [7]3 years ago
8 0

Correct answer: c) Backbone—a phosphate group and a sugar

d) Rungs—bases

The DNA molecule is made up of a molecule called as a nucleotide. It consists of a Phosphate group, nitrogenous base, and a sugar group.

Each nucleotide molecule contains the four nitrogenous bases called as guanine [G], cytosine [C], adenine [A] and thymine [T], the pentose sugar and a phosphate group.

The rungs of the DNA strand are made up of nitrogenous bases and backbone of the DNA strand are composed of sugar and phosphate group.











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9

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Explain how the inputs of cell respiration, oxygen and sugar change into energy carbon dioxide, and water.
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During photosynthesis, the plant needs carbon dioxide and water-- both of which are released into the air during respiration. And during respiration, the plant needs oxygen and glucose, which are both produced through photosynthesis!
5 0
3 years ago
The amino acids of a growing polypeptide chain are held together by what kind of bond during the elongation stage of translation
kifflom [539]

Answer: Peptide bond

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4 0
3 years ago
If a cell culture has 3 x 105 cells per ml , and the culture flasks hold 75 ml of culture each and you have 12 flasks, how many
natta225 [31]

There are 27 x 10⁷ cells in total for the given conditions of cell culture.

Since it is given that the cell culture contains 3 x 10⁵ cells per ml and there are 12 culture flasks in total. It is also given that each of the culture flask holds 75 ml of culture.

Therefore, to calculate the total capacity of the flasks the total number of flasks should be multiplied with the individual capacity of a flask:-

75 x 12 = 900 ml

Now, in order to calculate the total number of cells in the given culture., the total capacity of the flasks i.e. 900 ml should be multiplied with 3 x 10⁵ cells per ml in the following manner:-

900 x (3 x 10⁵) = 2700 x 10⁵ = 27 x 10⁷ cells

To learn more about cell culture here

brainly.com/question/1005896

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4 0
1 year ago
I NEED HELP ASAP!!!!!!
Salsk061 [2.6K]

Answer:

42 kg.m/s if the two are moving in the same direction

Explanation:

momentum formula: p=mv

22kg.m/s+20kg.m/s= p

42kg.m/s=p

the momentum of both objects=42 kg.m/s

3 0
3 years ago
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