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3 years ago

List and briefly describe the three main cell cycle checkpoints.

Biology

1 answer:

V125BC [204]3 years ago

3 0

Answer:

The cell cycle is controlled at three checkpoints. The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.

Explanation:

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How biologists have changed the major levels of the Linnaean system over time.

valina [46]

Answer:

A major change to the Linnaean system was the addition of a new taxon called the domain.

Explanation:

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Which of the following are benefits of genetic engineering?

gizmo_the_mogwai [7]

Answer:

Production of new vaccines, cancer drugs and preparing seedless grapes are the benefits of genetic engineering.

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The chemical equation for photosynthesis suggests that blowing on a glass of water placed in a sunbeam will produce glucose and

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Answer:

Plants need chlorophyll to conduct photosynthesis

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3 years ago

Genetic codes contain____ (Select all that apply.)

Yuki888 [10]

Answer:

- complex info; detailed instructions

genetic codes contain complex information; detailed instructions

Explanation:

The genetic code is a set of rules by which information encoded in the genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells.

-The genetic code consists of 64 triplets of nucleotides. these triplets are called codons. With three exceptions, each codon and codes for one of the 20 amino acids used in the synthesis of proteins. that produces some redundancy in the code: MuscleTech amino acids being encoded by more than one codon.

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4 years ago

What are the communities in a successional sequence of primary succession?

dedylja [7]

Explanation:

Communities in a primary succession include

-barren rock

-bacteria and fungi

-mosses and lichen

Further Explanation:

Ecological communities are highly dynamic- they gradually evolve. Typically their progression involves:

colonizing species exploiting uninhabited areas (Primary succession)
becoming a habitable and increasingly complex community
there is increased diversity of organisms (Secondary)

The makeup of biological communities is crucial to defining Primary and Secondary succession; eventually, through changes in this makeup, a steady-state or equilibrium is reached called a climax community. While Primary succession starts off with the modification of a previously unoccupied area along with increasing variation; secondary succession begins after major disruption in the community such as fires, storms and flooding.

However, the process of becoming a climax community can be pretty complicated- it is very dependent on other factors like temperature and rainfall. Communities that experience rapid change, frequent major disruptions and even human intervention, are less likely to attain a stable equilibrium and may never become climax communities.

Learn more about ecological succession at brainly.com/question/2456852

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3 years ago