3 years ago

Why do you think DNA is duplicated before

1 answer:

5 0

The two cells that result from a single cell need to have the same amount of genetic material as the initial cell, therefore the DNA needs to be duplicated before the cell divides.

The sister chromatids are attached together so that during anaphase the daugther cells will receive the same chromosomes

You might be interested in

Which surface erosion event does the most short-term damage?

aliina [53]

Answer:

splash erosion.

Explanation:

6 0

2 years ago

A brown bird was crossed with a white one and all of the offspring were tan. Complete a Punnett Square analysis for this pair to

Alex73 [517]

Answer:

here.

Explanation:

The genes coding for colour show codominance. Both the brown and white pigment are equally expressed in the phenotype to give the tan colour.

Considering that the allele for brown pigment is CB and that for white pigment is CW, the genotype for the brown bird is CB CB and that for the white bird is CW CW.

Crossing CB CB × CW CW,

100% CB CW - tan-coloured birds

3 0

3 years ago

How scientists use repeated trials and replication in conducting experiments

puteri [66]

Scientists repeat the experiment to further prove it being correct, and they can replicate is with data, models, and other forms of proof of a correct hypothesis

6 0

2 years ago

Read 2 more answers

Are centrioles affected by viruses

artcher [175]

Answer: Yes they are affected. By targeting the centrosome, some viruses hijack its functions, leading eventually either to cell death or to cell transformation.

Explanation:

5 0

2 years ago

Based on this view of Earth, we would predict that A) land masses are heat sinks on Earth. B) more solar radiation is absorbed b

Juliette [100K]

The answer is B. The ocean will absorb more water because the land reflects it back.

4 0

2 years ago

Read 2 more answers