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Bogdan [553]
3 years ago
15

Why does a cell need to make RNA

Biology
1 answer:
Stolb23 [73]3 years ago
5 0

Answer:

When the cell needs to produce a certain protein, it activates the protein's gene–the portion of DNA that codes for that protein–and produces multiple copies of that piece of DNA in the form of messenger RNA, or mRNA. ... We now know that RNA can also act as enzymes (called ribozymes) to speed chemical reactions.

Explanation:

When the cell needs to produce a certain protein, it activates the protein's gene–the portion of DNA that codes for that protein–and produces multiple copies of that piece of DNA in the form of messenger RNA, or mRNA. ... We now know that RNA can also act as enzymes (called ribozymes) to speed chemical reactions.

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A group of environmentalists were discussing the benefits and drawbacks associated with using fossil fuels. Which argument best
shepuryov [24]

Answer:

The correct answer is A. Fossil fuels are cheaper than alternative forms of energy

Explanation:

Fossil fuels are made from organic matter of dead animals and mainly plants  who were buried in the soil over hundred and thousand of years. We use fossil fuels because they are the best source to provide energy in the current time.

Fossil fuels are easily available and are present in very large amount which is the main reason for it to be cheaper. Fossil fuels like coal, petroleum or natural gas are more cheaper and efficient than alternative forms of energy like solar or wind energy.

But in future these fossil fuel will not be there and alternative forms of energy will become the primary and cheaper source of fuel.

5 0
3 years ago
Read 2 more answers
compare the reproductive strategies of a short lived species such as a starfish and a long lived species such as a hippopotamus​
AVprozaik [17]

Answer:

<u><em>Starfish</em></u> reproduce every winter by ejecting there eggs into the water, since they only live on average 35 years they reproduce about 35 times in their lifetime. Only a couple of the eggs will fertilize and turn into a Starfish.

<u><em>Hippos</em></u> are the only mammals in Africa that reproduce in water, Hippos reproduce in May and through June. Hippos usually live to around 40 to 50 years, and most hippos through May and June reproduce more than one time.

Explanation:

Hippos strategies of reproducing are better than Starfish.

8 0
3 years ago
Fungi have saprophytic nutrition. But, what is it exactly? How does it work?
Sloan [31]
Saphrophytic nutrition is all about obtaining nutrients from non-living organic matter, usually dead and decaying plant or animal matter, by absorbing soluble organic compounds.
3 0
3 years ago
In their 1953 paper on the double-helical structure of DNA, Watson and Crick famously wrote: "It has not escaped our notice that
dsp73

Answer:

The statement suggests ability of existing DNA molecule to replicate itself by the process of DNA replication. Each strand of double helical DNA can serve as template for the synthesis of new complementary DNA strand.

Explanation:

Watson and Crick proposed the double-helical structure of DNA. Accordingly, the DNA molecule is a double helical structure in which two polynucleotide chains are held together by base pairing between the complementary bases of two chains.  

There are four nitrogenous bases present in DNA: adenine and guanine (purines) and cytosine and thymine (pyrimidines). Adenine always pairs with thymine and cytosine pairs with guanine base.  

According to Watson and Crick, the ability of one DNA strand to base-pair with a complementary DNA strand suggests the existence of the DNA replication process. During DNA replication, each DNA strand should serve as a template to specify the nucleotide sequence of the new DNA strand.  

8 0
3 years ago
Help me please !I’ll mark you brainly
grigory [225]

Answer:

1 is b

2 is c

3 is either b or c

i don't really remember 4, sorry

Explanation:

4 0
3 years ago
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