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Bumek [7]
3 years ago
6

Select all that apply: Nucleic acids _____.

Biology
2 answers:
Marat540 [252]3 years ago
5 0
I would believe the correct responses would be option 1,2,4.
aksik [14]3 years ago
4 0

Answer:

The correct answer will be: are the largest of the four main biological                    macromolecules, consist of DNA and RNA and whether an organism is a bacterium, tree, mouse, or human.

Explanation:

Nucleic acids are the macromolecules which act as genetic material of organisms.Two types of nucleic acids-DNA and RNA act as genetic material.

The structure of these nucleic acids are long chains formed by the bonding of nucleotide units. These nucleotides are made up of 5-C sugar, phosphate and nitrogenous base which make up the long chains of molecule and forms one of the largest biological macromolecule.

The order of nitrogenous bases (adenine,guanine, cytosine, thymine) in the functional part of DNA also called genes decides the fate of cell as they code for proteins. The sequence of these bases in genes is highly conserved among organisms giving uniqueness to the organism but the variation in the sequence of DNA or nitrogenous bases leads to the formation of new organism or new species.

Thus, these options are the correct answer.

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In a motor reflex , such as the patellar tendon reflex, afferent action back to the spinal cord is mediated through which of the
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The correct answer will be option-B.

Explanation:

The patellar tendon reflex is the kicking movement of the lower leg in response to the tap on patellar cap used to test the L2, L3, and L4 segments of the spinal cord in the body.

The spinal cord interacts with muscles through muscle sensors called muscle spindle which signals after the stretching of the muscle. The signals are sent to the spinal cord through afferent neurons or sensory neurons which starts the reflex action to prevent overstretching of the muscle.

Thus, Option-B is the correct answer.

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