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Elena L [17]
3 years ago
5

Which is an important question driving science curriculum reform?

Biology
1 answer:
ArbitrLikvidat [17]3 years ago
5 0
D, all of the above.
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In recombinant dna experiments, what is used to cut pieces of dna and what joins the resulting fragments to form recombinant dna
jonny [76]

DNA fragments are cut out restriction enzymes (restriction endonucleases) and then joined together using enzymes called DNA ligases.

<span>Restriction enzymes are enzymes which recognize target sequences (recognition sites) and cuts DNA at or near those sequences.</span>

DNA ligase is an enzyme that connects the gap between the molecules (if they have matching ends).

4 0
3 years ago
How are asexual reproduction and sexual reproduction related?
kykrilka [37]
Asexual reproduction generates offspring that are genetically identical to a single parent. In sexual reproduction, two parents contribute genetic information to produce unique offspring.
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3 years ago
What are the three types of cell signaling
PIT_PIT [208]

Answer:

there are 4: paracrine signaling, autocrine signaling, endocrine signaling, and synaptic signaling

Explanation:

paracrine:cells that are near one another communicate through the release of chemical messengers 

autocrine: a cell signals to itself, releasing a ligand that binds to receptors on its own surface 

endocrine:When cells need to transmit signals over long distances, they often use the circulatory system as a distribution network for the messages they send. 

synaptic: nerve cells transmit signals. The junction between two nerve cells where signal transmission occurs.

5 0
3 years ago
PLEASE HELP QUICKLY !!!!
Karolina [17]

Answer:

not see clearly yrr.........

3 0
3 years ago
I’m which structure is all the genetic information of an organism found?
Likurg_2 [28]

Answer;

-DNA

Explanation;

-DNA stands for deoxyribonucleic acid. It's the genetic code that determines all the characteristics of a living thing.

-It contains the genetic instructions for the development and function of living things. These instructions are needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the activities in our bodies.



7 0
3 years ago
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