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Sauron [17]
3 years ago
14

At the end of which period did nearly three quarters of all species of life on earth go extinct in a very short time interval Ca

mbrian jurassic triassic cretaceous
Biology
1 answer:
Ostrovityanka [42]3 years ago
7 0

It's the cretaceous time period.

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What are the mRNA triplets coded for from this gene? A) GGG UUC ACC B) CCC AAG TGG C) GGG TTC ACC D) UUU CCC AGA
vfiekz [6]

Complete question:

A gene on strand of DNA has the following nucleotide sequence: CCCAAGTGG

A) GGG UUC ACC

B) CCC AAG TGG

C) GGG TTC ACC

D) UUU CCC AGA

Explanation:

What are the mRNA triplets coded for from this gene?

A) GGG UUC ACC

RNA codons determine certain amino acids, so the order in which the bases occur within in the codon sequence designates which amino acid is to be made bus with the four RNA nucleotides (Adenine, Guanine, Cysteine and Uracil). Up to 64 codons (with 3 as stop codons) determine amino acid synthesis. The stop codons ( UAG UGA UAA) terminate amino acid/ protein synthesis while the start codon AUG begins protein synthesis.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is condensed and tightly wound around histones as chromosomes. Chromosomes within the nucleus is unwound, unzipped and read by enzymes in a complex series of steps known as transcription. The message on DNA, called genes is copied by RNA polymerase, to form mRNA complementary sequence to that of the DNA strand. These are then translated into proteins in ribosomes.

Nucleic acids like DNA stores all of an organism’s genetic information. Nucleic acid molecules comprise the nitrogenous bases Guanine, Adenine, Cytosine and Thymine. Conversely, RNA nucleotides are Adenine, Guanine, Cysteine and Uracil. These pair up as base pairs due to their varied structure- largely influenced by the location of N molecule.

In certain combinations, these bases form codons which act as instructions for protein synthesis. Codons are three nucleotide bases encoding an amino acid or signal at the beginning or end of protein synthesis. Thus, these contribute to the broad diversity of living organisms, as varied combinations of these 64 codons can produce many proteins which can be organized into cells, tissues and organisms.

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

5 0
3 years ago
16. Lysosomes contain specific enzymes that break down large molecules, such as food particles.
katen-ka-za [31]

Answer:

True

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the small size of the phytoplankton gives them the benefit of . It also , which maximizes their ability to absorb nutrients.
Ivan

Answer:phytoplanktons are photosynthestic organism. They have the ability to produce their own food.

Explanation: Because of there small size they could absorb nutrients in the water even at lower concentration and convert it to energy need for there growth.

Its is said that phytoplanktons are one of the largest producer of oxygen gas.

4 0
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What would be the main problem with reproduction if meiosis did not take place to form sex cells?
shtirl [24]
Answer - <span>Fertilization would result in a zygote with twice as many chromosomes as the parents.

Reasoning - Without Proper stable form of stages it would double and the cells wont be able to survive in the next generation.</span>

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Which is the purpose of transfer RNA?
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D is the right answer
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