2 years ago

Help?????????????????????

Biology

1 answer:

topjm [15]2 years ago

4 0

Answer:

Explanation:

The only difference between the speed and the velocity is that the velocity tell us about magnitude and direction but speed tell us about magnitude only. Hence, the correct option is,

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If high amounts of sulfanilamide are in the presence of an enzyme whose substrate is paba, what outcome is expected?

Doss [256]

<span>If high amounts of sulfanilamide are in the presence of an enzyme whose substrate is paba, then the enzyme would stop functioning since the sulfanilamide inhibits the action of the enzyme. Hope this answers the question. Have a nice day.</span>

3 0

2 years ago

For many generations, the following genotypic frequencies were observed in a large population of dinosaurs: 4 percent AA, 32 per

Usimov [2.4K]

Answer:

C) 19.7%

Explanation:

The new population distribution after climate change wiped out homozygous recessive dinosaurs is:

$AA = \frac{4}{4+32}=\frac{1}{9}$

$Aa = \frac{32}{4+32}=\frac{8}{9}$

The percentage of offspring of this new population that are homozygous recessive is given by:

$P(Aa\ x\ Aa) = \frac{8}{9} *\frac{8}{9} =\frac{64}{81} \\P(aa) = \frac{1}{4}\\P(Aa\ x\ Aa) \cap P(aa) = \frac{64}{81}*\frac{1}{4} =0.197=19.7\%\\$

19.7% of these newborn dinosaurs died

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2 years ago

Why were Archaea and Bacteria grouped together by biologists until recently?

Norma-Jean [14]

Archaea and Bacteria were grouped together because they were both Prokaryotes since they had no nucleus. Scientists then realized they were different because archaea can live in extreme environments, and bacteria can't.

hopefully my answer helps u

6 0

2 years ago

Read 2 more answers

When the polymerase chain reaction (PCR) is used to amplify segments of DNA, the sample is first heated, and then cooled, in cyc

baherus [9]

Answer:

At least 17 PCR cycles or 16 PCR cycles

Explanation:

As we know -

In one chain of heating and cooling of polymerase chain reaction (PCR), the strands of DNA gets doubled.

The general mathematical representation of this is

${2^n - (2 * n)}$