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ahrayia [7]
3 years ago
12

How to survive in pressures lead to natural selection

Biology
1 answer:
lbvjy [14]3 years ago
8 0

Answer:

Mutations and sexual reproduction increase genetic variation in a population. Natural selection occurs when environmental pressures favor certain traits that are passed on to offspring. ... Individuals may mutate, but natural selection acts by shifting the characteristics of the population as a whole.

Explanation:

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laiz [17]

Answer and Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

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8 0
3 years ago
in b.linchenformis a few amino acids are removed from the c-terminal end of the beta lactamase enzyme after it is synthesized. T
Hoochie [10]

Answer:

WILD TYPE: NMNGK  

CODON SEQUENCE: AAU AUG AAU GGC AAA  

MUTANT: NMIWQCVMKD  

Explanation:

CODON SEQUENCE – AAU AUG AUA UGG CAA AUA UGU GUA AUG AAA GAU  

in the mutant insertion of U nucleotide shifted the frame. if the U (underlined and bold) was not inserted then the wild-type sequence will be

NMNGKYV (STOP CODON) = 269 AMINO ACID LONG WILD TYPE PROTEIN.  

CODON SEQUENCE  AAU AUG AAU GGC AAA UAU GUG UAA

3 0
3 years ago
What strategies do cells use to ensure that newly replicated DNA does not contain errors? DNA polymerase replaces the newly repl
jarptica [38.1K]

Answer:

Enzymes proofread the DNA after the DNA has been replicated and replace any mismatched nucleotides.

Explanation:

DNA replication occurs to make exact copy of original DNA. Transcription of genetic information to an intermediate mRNA occur after replication after which we have translation of genetic information into amino acids.

In the process of replicating DNA error can occur and then enzymes proofread the work for errors. Enymes DNA polymerase proofs read the replication,removes and replace the nucleotide base from where error occurs. It proof read after the DNA replication has occured.

This enzyme is also involve in DNA replication.

3 0
3 years ago
In what phase of the cell cycle do chromosomes first split
AysviL [449]
Anaphase - replicated chromosomes are split, daughter chromatids move to opposite sides (poles) of the cell
7 0
4 years ago
How could the maturation of an egg cell in an ovary be halted?
vitfil [10]
If the immature egg cell does not mature because their body has a stalled or halted production of the sex hormones that enable meiosis to resume.
6 0
4 years ago
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