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Ne4ueva [31]
3 years ago
15

What is a stop codon​

Biology
2 answers:
Sav [38]3 years ago
6 0

Answer:

A stop Codon is the last sequence of base pairs (A,T,C,G) that tells when a new protein and amino acid are formed.

storchak [24]3 years ago
4 0

Answer:

In the genetic code, a stop codon (or termination codon) is a nucleotide triplet within messenger RNA that signals a termination of translation into protein

Explanation:

Proteins are based on polypeptides, which are unique sequences of amino acids. Most codons in messenger RNA (from DNA) correspond to the addition of an amino acid to a growing polypeptide chain, which may ultimately become a protein. Stop codons signal the termination of this process by binding release factors, which cause the ribosomal subunits to disassociate, releasing the amino acid chain. While start codons need nearby sequences or initiation factors to start translation, a stop codon alone is sufficient to initiate termination.

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Serratia marcescens cells produce a red pigment at room temperature. The red color of the colonies is an example of which of the
Oliga [24]

Answer:

The red color of the colonies is an example of <u>a phenotype .</u>

Explanation:

Serratia marcescens -

They are the species ,that are , gram - negative bacteria , rod - shaped ,

they are from the family of Enterobacteriaceae .

Serratia marcescens are mostly found in the urinary and respiratory tracts of the hospitalized adults and in children , in  the gastrointestinal systems .

S. Mercescens are most commonly found in the environment , growing the bathroom and dirt .

It is gram-negative, produces a reddish - orange tripyrrole pigment called the prodigiosin , is an example of phenotype .

7 0
3 years ago
Which layer of skin contains living cells, is vascularized, and lies directly above the hypodermis?
kicyunya [14]

Answer:

Dermis.

Explanation:

The skin is the outer most protective layer that differ in structure and composition of the vertebrates. The main function of skin is the regualtion, sensation and protection of the organism.

The skin is divided into different layer : epidermis, basement membrane dermis,  and subcutaneous tissue. Only the dermis layer contains the living cells that are highly vascularized and present beneath the hypodermis. Dermis layer protect the body from the stress and strain.

Thus, the correct answer is option (2).

6 0
3 years ago
Explain why cnidarians are considered more "advanced" than poriferans.
Paladinen [302]

Answer:

Cnidarians represent a more complex level of organization than Porifera. They possess outer and inner tissue layers that sandwich a noncellular mesoglea. Cnidarians possess a well-formed digestive system and carry out extracellular digestion.

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3 0
3 years ago
Lodgepole pines, often found in the taiga, have an interesting adaptation for reproduction. These trees produce female cones tha
butalik [34]
The answer should be C
3 0
3 years ago
What is evolution? 0:46
tatyana61 [14]

Answer:

Evolution is change in the heritable characteristics of biological populations over successive generations.

Explanation:

An example of evolution is the theory started by Charles Darwin that theorizes about how humans came to be in their present form.

4 0
2 years ago
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