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EleoNora [17]
3 years ago
11

The building blocks of nucleic acids are ______.

Biology
1 answer:
Morgarella [4.7K]3 years ago
7 0
D nucleotides. which have nitrogen, carbon and a phosphate group
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:/ plz help ill give you brainiest follow 5star and ty.<br> Seriously.
gogolik [260]

Answer:

its the first option (a)

5 0
3 years ago
In E. coli protein synthesis, the initiation complex contains
Ksenya-84 [330]

Answer:

The correct answer will be option-C.

Explanation:

The process of translation in prokaryotes is complex process and proceeds in three steps: initiation, elongation and termination.

1. Ribosomal subunits: 50S (5S and 23S subunit) and 30S (16S and proteins).

2. Initiation factors: IF1, IF-2 and IF-3 which help in the formation of assembly.

3 GTP: guanosine triphosphate as a source of energy.

4. Charged tRNA: with N-formylmethionine is the first amino acid.

5. mRNA: the RNA to be translated.

Since the option contains both 50S and 16S components of ribosome thus, Option-C is the correct answer.

7 0
3 years ago
A mass extinctions is
Soloha48 [4]

Answer:

Mass extinction is when biodiversity or species in a living habitat decreases to about three-fourths of its original number or to none. Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. It occurs when the rate of extinction increases with respect to the rate of speciation. Mass extinctions are usually associated with organisms that are macroscopic rather than microscopic. Examples of mass extinctions are Permian extinction of marine species, and Cretaceous extinction of various species, including dinosaurs.

6 0
2 years ago
Which characteristic of the male reproductive system is not variable among animal species that reproduce sexually?
Kay [80]

The question is incomplete as it does not have the options which are:

A.) Presence of genitalia.

B.) Shape of genitalia.

C.) Presence of a scrotum.

D.) Composition of accessory fluids.

Answer:

Option-A

Explanation:

The reproductive system which is the system formed by the organ which is involved in the reproduction in an organism. These reproductive organs are known as genitalia. Since reproduction is one of the criteria of the cellular organisms, reproduction is possessed by all the organisms on Earth.

The animals which bear the reproductive structures therefore always show the presence of both internal and external reproduce organs like testes, Vas deferens as internal organs and penis and scrotum as external organs.

Thus, Option-A is correct.

7 0
3 years ago
Font Paragraph Styles Jim is a truck driver who is on the road for long hours. He admits to eating "unhealthy foods and often st
alina1380 [7]

Answer:

Jim's

risk factors for GERD are are

eating unhealthy food,

drinking too much caffeine products inadequate sleep.

Barrett's esophagus occurs when the oesopagus is exposed to too much stomach acid. When this acid refluxes in GERD

This is Ambulatory acid probe test used to check GERD by checking the pH of the oesophagus.

3 0
3 years ago
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