If a cell has 46 chromosomes, how many chromosomes will that cell have after the DNA is replicated during the synthesis phase?

How can the mass of an object be determined in a laboratory?

Murrr4er [49]

The object is balanced against standard units of mass

5 0

3 years ago

Helpppppppppppppppppppppppppppppppppppppppppppppppppppp

sveta [45]

corona is a

Photophere is C

radiative zone is D

chromophere is B

4 0

3 years ago

Plz help ASAP! THANK YOU

marysya [2.9K]

Answer:

According to the diagram, what is occurring in step 7 is cytokinesis, with the separation of two daughter cells, following cell division.

Explanation:

Cytokinesis is a process that occurs at the end of mitosis or meiosis, being the final step of cell division. This mechanism allows the separation of the two daughter cells, with equal distribution of cytoplasm and formation of cell membrane, differentiating into two independent cells.

In the diagram it can be observed (step 7) that after the division process —in yellow— two arrows pointing to two cells are evident, which implies the process of cytokinesis.

Prior to the cytokinesis process, karyokinesis occurs, which is the separation of nuclei and formation of the nuclear membrane.

In animal cells, karyocinesis occurs by the effect of a ring of actin and myosin that helps to force the separation. In the plant cell, the fragmoplast is formed, a septum that induces the separation of the daughter cells.

The other options are not correct because:

Cell growth occurs in G1 phase.
Cell preparation occurs in interphase.
DNA replication occurs in S phase.
Mitosis is represented in yellow, and involves 4 phases.

4 0

2 years ago

Explain what it means for a section of DNA to be considered a molecular clock. Be sure to discuss the importance of neutral muta

IceJOKER [234]

Neutral mutations are neither harmful nor beneficial.

Therefore, they are invisible to natural selection. (Since they neither improve nor worsen one individual's chances of survival and reproduction over another.)

However neutral mutations can still spread into the population by just random replications and matings. This is called genetic drift.

In other words, they are 'silent'. They are mutations that exist and propagate in populations, but seem to have no effect at all.

The reason they can become important to evolution is that a day can come when they *do* have an effect. In other words, even though an individual mutation may have no immediate effect on survival or reproduction, a *combination* of neutral mutations may provide some new benefit or harm ... at which point natural selection *will* act on that combination.


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

6 0

2 years ago

NO LINKS OR I WILL REPORT

chubhunter [2.5K]

Answer:

Three examples of fossil fuels are:

1). Petroleum

2). Coal

3). Natural gas

5 0

2 years ago