Which of the following best describes the relationship between the nucleolus and ribosomes within a cell? Nucleoli house ribosomes until they are needed by the cell, after which they exit the nucleus and enter the Golgi apparatus to form proteins.
Proteins and rRNA assemble into ribosome subunits inside the nucleolus, after which the subunits leave the nucleus and combine to form ribosomes.
Ribosomes are manufactured in the cytosol, after which they enter the nucleolus and carry out protein synthesis.
Ribosomes break down the nucleolus so that DNA can enter the cytosol, after which proteins transcribe DNA into mRNA chains.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

what have scientists found to be the most efficient and effective way to insert new sequences into an individual? a-scientists have created genetically altered foods that release dna during digestion. b-scientists use viruses to insert specific gene sequences. c-scientists irradiate genes so that they can be absorbed through the skin.

what are the awnser choices? i mean, without choices, it is an incompleat