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Mars2501 [29]
1 year ago
6

Single strands of nucleic acids are directional, meaning that there are two different ends. What functional groups define the tw

o different ends of a strand?
Biology
1 answer:
worty [1.4K]1 year ago
7 0

Answer:

The 5' end has free phosphate group while the 3' end has free OH group.

Explanation:

Each DNA strand has two ends that differ from each other with respect to the functional group. The nucleotide present at the 5' end of a DNA strand has a free phosphate group. This phosphate group of other nucleotides of the DNA strand is bonded in phosphodiester bonds. Likewise, the 3' end of a DNA has a free OH group. This makes the two ends of a DNA strand quite different from each other. A DNA new nucleotide can be added to the 3' end due to the presence of a free OH group.

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What two parts of a nucleotide do not ?change throughout the structure of DNA a. Five-Carbon Sugar and Phosphate Group b. Five-C
Stolb23 [73]

Answer:

a. Five-Carbon Sugar and Phosphate

Explanation:

A nucleotide can be defined as an organic molecule which forms the building block of nucleic acid such as deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).

Basically, nucleotide comprises of the following parts;

1. Nitrogenous base: this includes adenine (A), thymine (T), guanine (G), and cytosine (C) which are mainly found in the DNA while adenine (A), guanine (G), uracil (U) and cytosine (C) are found in the RNA.

2. A phosphate group.

3. A penrose sugar: it is either deoxyribose in DNA or ribose in RNA.

The two parts or chemical components of a nucleotide which do not change throughout the structure of DNA are;

I. Five-Carbon Sugar also known as deoxyribose and it has hydrogen on its second carbon.

II. Phosphate: this is the structural backbone that provides support to DNA.

3 0
1 year ago
Please hurry, worth 15 points!!!!!!!!!!!!!!!!!
Verizon [17]

I believe its C-Mitochondrion.

It the powerhouse of the cell.

-Steel jelly

4 0
1 year ago
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What is the proper position of the erector spinae muscles situated from medially to laterally relative to the axis of the verteb
Kazeer [188]

Answer:

These group of muscles called erector spinae muscles arises from a tendon in the sacral area and pelvis, it extends up to the occipital bone.

Erector spinae muscles originates from the SPINOUS PROCESSES of T9-T12 of the thoracic vertebrae and inserts into the SPINOUS PROCESSES of T1-T2 of the cervical vertebrae

They therefore run vertically on either side of the spine (medially and laterally).

3 0
2 years ago
Even though a motion picture actually consists of a series of still frames, we perceive them conveying continuous movement. This
zloy xaker [14]

Answer:

Even though a motion picture actually consists of a series of still frames, we perceive them conveying continuous movement. This is an example of stroboscopic effect.

Explanation:

The stroboscopic effect is caused by aliasing which leads to different signals to become identical when sampled.

7 0
1 year ago
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A rock sample has a mass of 16 grams and a volume of 8 cubic centimeters. When the rock is cut in half, what is the volume and d
spayn [35]

Answer:

Volume= 4 cm³

Density= 2 g/cm³

Explanation:

We have the following data:

volume= V= 8 cm³

mass= m= 16 g

The density is the mass per volume of a substance, so the density of the rock is:

density= d= 16 g/8 cm³= 2 g/cm³

When we cut the rock in half, we have a half volume and a half mass:

V= 8 cm³/2= 4 cm³

m= 16 g/2= 8 g

But the density is not altered because it is an intrisic property - it does not change with the amount of subtance. Thus, the density of a half rock is:

d = m/V= 8 g/4 cm³= 2 g/cm³

6 0
1 year ago
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