Eukaryotic genome structure features (check all that apply): Group of answer choices a. Linear chromosomes with centromeres and telomeres that facilitate sexual reproduction. b. Absence of a membrane bound nucleus. c. 3 dimensional DNA architecture to support control of transcription. d. Chromosome structure that controls packaging and expression.

1. Linear chromosomes with centromeres and telomeres that facilitate sexual reproduction

2. 3 dimensional DNA architecture to support control of transcription

3. Chromosome structure that controls packaging and expression.

Explanation:

The Eukaryotic genome is more complex and possesses a large number of base pairs compared to the prokaryotes.

The eukaryotic genome is arranged in a structure that they can be passed on easily to the offspring that is the linear DNA becomes condensed and form chromosome structure with a centromere is the center and telomeres at the end.

The chromosome structure allows the easy transcription of the genome and the controls the expression and packaging that is at some point it becomes condensed and at some it is relaxed.

Since the eukaryotes possess a membrane-bound nucleus, therefore, the option is incorrect.

Thus, the selected options are correct.

the correct answer is:

a population changes in response to a change in the environment.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.