Why do vestigial structures support evolution?

Biology

1 answer:

Roman55 [17]2 years ago

6 0

Answer:

Vestigial structures

Explanation:

support evolution, by suggesting us that the organism changed from using structure to not using structure or using it for another purpose.

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Genes that are found along a DNA molecule hold instructions to build (blank).

mylen [45]

Answer:

To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies. Each DNA sequence that contains instructions to make a protein is known as a gene.

Explanation:

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3 years ago

BRAINLIESTTTT ASAP!!

weeeeeb [17]

Answers:

1. C is correct answer. Y is a liquid because it fills up to the entire container.

2. C is correct answer. The two substances are the same because their intensive property is the same.

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New genes can be added to or replace the genes on a bacterial plasmid in a process known as __.

allochka39001 [22]

Answer:

Recombinant plasmid

Explanation:

Researchers can insert DNA fragments or genes into a plasmid vector, creating a so-called recombinant plasmid.

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2 years ago

Why would an athlete have a big pasta dinner the night before a race?

gulaghasi [49]

Because he/she needs to store large quantities of energy that he/she would require for the race. Pasta mainly consists of wheat which a carbohydrate. carbohydrates are primary source of energy in the body. once an athlete consumes pasta, starch in the wheat will digested to produce excess glucose which will be stored in form of glycogen in the live by the help of hormone insulin. during the race day, when an athlete uses all glucose in the blood, glycogen is converted to glucose through the help of hormone glucagon. glucose is transported to skeletal muscle cells where it is converted to energy.

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The crispr system involves the cas9 enzyme, which identifies specific nucleotides to be cut using a(n) ________ molecule as a gu

bonufazy [111]

Answer:

RNA

Explanation:

CRISPR system was discovered by a Japanese scientist. Naturally bacteria and many other prokaryotes have CRISPR system in their genome which they use as a self defense against a pathogen which is invading them. It consists of inter spaced, short palindromic nucleotide repeats which encode a guide RNA (gRNA). This guide RNA (gRNA) recognizes the target sequence on the pathogen. The gRNA is followed by Cas9 enzyme which along with the gRNA plays a very important role in breaking genome of the pathogen. Once the target gene is cut down the rest of the DNA can be rejoined by non homologous end joining.

But nowadays, scientists are using this system for genome editing and incorporating desired gene between the two ends which are cut down by CRISPR Cas9 system.

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3 years ago

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