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garri49 [273]
2 years ago
11

6. Evolution explains how variations can lead to changes in a species

Biology
1 answer:
Sever21 [200]2 years ago
3 0

Answer: Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes. as we evolve our genetic genes change because the gametes come from 2 parents and has half the DNA (23)  and thousands of years passes and if you will compare people in ancient times to now we are completely different.

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A scientist is studying a cell and can clearly see that it has rib
aivan3 [116]
If so the answer is that the cell is eukaryotic because it contains mitochondria
4 0
3 years ago
what is an important principle of the scientific method in which an experiment can accurately be reproduced by an independent re
azamat

Answer:

Replication

Explanation:

Replication is the ability of an essay or experiment to be reproduced or replicated by others, in particular, by the scientific community. Replication is one of the pillars of the scientific method, with falsifiability being the other. Depending on the particular scientific field, reproducibility may require that the test or experiment be falsifiable.

6 0
3 years ago
Gene expression—translation how do cells synthesize polypeptides and convert them to functional proteins?
slavikrds [6]
The language of DNA in form of nitrogen bases read in a set of three termed as codons and it is being translated as language of proteins.

First mRNA is read according to the genetic code which can relate the amino acid sequence to proteins. mRNA can be use as the template to assemble in order the chain of amino acid. Translation starts when the mRNA is decoded and the sequence is elongated  until creating an amino acid sequence. Once the stop codon is reached, translation will be stopped and ribosome will release the polypeptide.
3 0
3 years ago
An operon is controlled by a repressor. When the repressor binds to a small molecule, it binds to DNA near the operon. The opero
larisa [96]

Answer:

Negatively repressible.

Explanation:

A control which occurs through repressor is known as negative control which may be inducible or repressible.

When a small molecule named as allolactose binds this repressor it leads to allosteric repulsion which removes repressor from the operator as a result of which RNA polymerase can start transcription. Allolactose is therefore known as inducer because it induces lac operon expression.

But here, the operator is active (induced) already so there is no need to induce the operon which means that it can only be repressed so that transcription could stop. So the answer is negatively repressible operon.

6 0
3 years ago
Atoms are held together in a molecule by __________________ bonds.
spayn [35]

Answer:

by convalent bonds

Explanation:

8 0
4 years ago
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