Biology, 20.11.2020 20:10 annafellows

Which of the following accurately describes the process of crossing over? А
Crossing over occurs before replication and non-sister chromatids exchange gene segments to make new combinations of genes.
B
Crossing over occurs after replication and non-sister chromatids exchange gene segments to make new combinations of genes.
с
Crossing over occurs before replication and only sister chromatids exchange gene segments to make new combinations of genes.
D
Crossing over occurs after replication and only sister chromatids exchange gene segments to make new combinations of genes.

Answers: 3

Show answers

Another question on Biology

Biology, 22.06.2019 02:00

How is ribosomal rna useful as a molecular clock? a. a large portion of the dna ring is not vital to structure or function, allowing it to accumulate neutral mutations. b. its rate of mutation increases over time as organisms continue to evolve and differentiate from each other. c. a slow mutation rate makes it useful for determining evolutionary relationships between ancient species. d. it is only found in select organisms, making it easier to compare relationships between species that have it.

Answers: 1

Answer

Biology, 22.06.2019 10:30

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

Answers: 3

Answer

Biology, 22.06.2019 14:20

What term describes a doctor who becomes a specialist by meeting standards beyond those of getting a license and passing a test in the specialty area?

Answers: 1

Answer

Biology, 22.06.2019 18:40

Hey everybody i need with a biology question. all the gametes of isogamous organisms are genetically identical. true false

Answers: 1

Answer

You know the right answer?

Which of the following accurately describes the process of crossing over? А
Crossing over occ...

Questions