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Olenka [21]
3 years ago
10

What period did ice-age mammals first appear?

Biology
1 answer:
Masja [62]3 years ago
3 0

Answer:

They lived from the pleistocene to the early holocene epoch about 10,000 years ago million of years after the dinosaurs went extinct.

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Scientists like to use fluorescent proteins for various types of recombinant DNA procedures. You have a very small amount of the
Novosadov [1.4K]

Answer:

The correct answer is b.Amplify the gene using PCR. Insert the gene into a plasmid vector. Transform the vector into the bacteria.

Explanation:

If I have a very small amount of gene for a fluorescent protein than the first step is to amplify the gene so that appropriate protein can be produced. PCR is the instrument that is used to amplify the protein.

So after amplification of the gene, the plasmid vector will be used in which the gene will be inserted because the plasmid vector is used to insert this gene in host cells where protein will be expressed.

The final step will be to transform bacteria with recombinant plasmid so that plasmid can make its copy and express a fluorescent protein in bulk.

6 0
3 years ago
Marking as brainliest what monosaccharides make up sucrose?
AlekseyPX

Answer:

Sucrose is common sugar. It is a disaccharide, a molecule composed of two monosaccharides, glucose and fructose.

6 0
2 years ago
How big is the average watermelon?
nata0808 [166]

10 to 12 inches

Fruits are nearly round averaging 10 to 12 inches in diameter with an average weight of 24 pounds. Flesh is bright deep-red with high sugar content and relatively few small dark brown mottled seeds Read More… This popular oblong striped variety averages 22 to 24 inches long by 11 to 13 inches in diameter.

6 0
3 years ago
DNA compaction into chromosomes is dependent upon a family of proteins called histones. These essential DNA organization protein
irinina [24]

Answer:

Explanation:

The history protein H2A, H2B, H3 and H4 forms an octamer ( 2 each of the four histones) around which the DNA is wrapped. They help in packaging the DNA allowing for compaction of the DNA

Linker histone H1 and a length of DNA (linker DNA) links two nucleosomes together and they also play essential role in chromatin strucrure, stabilizing it and also modulating accessibility of the DNA to biological processes.

8 0
3 years ago
Where does the sugar we eat come from?
cupoosta [38]
Sugar comes from either sugar cane or sugar beet<span> with the climate of a geographical region being the prime influence on which is grown. In both cases, the juice is extracted from the </span>sugar beet<span> or cane and impurities are removed. It is then crystallised into white sugar, which is 99.95% sucrose.</span>
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3 years ago
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