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4 years ago

NEED HELP DUE TODAY PLZ HELP ME!!!!

Biology

1 answer:

mars1129 [50]4 years ago

4 0

A because while b and c make sense they don’t help the cell “crawl”

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If the midwest experiences a severe drought that damages the corn crops, we should expect the

Reil [10]

If the Midwest experiences a severe drought that damages the corn crops, we should expect the supply of corn to decrease and the price of corn to rise.

Severe drought is a long period of abnormally low rainfall and dry weather, in a specific region, which negatively affects plants and living organisms. Severe droughts can have a considerable effect on the agriculture and ecosystem of the affected region. Severe drought damages crops, thus it influences crop production.

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4 years ago

Dna ligase is an enzyme that joins together pieces of dna. true false

Mama L [17]

This is true. DNA ligase catalyzes phosphodiester bonds. Which occur between the sugar molecules in polynucleotides. Nucleotides are the monomer to DNA, which contain a ribose sugar.. making DNA ligase able to join pieces of DNA together.

3 0

3 years ago

What are viruses? (not computer viruses)

lubasha [3.4K]

Answer:

A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.

6 0

2 years ago

Read 2 more answers

Pathogens that are catalase-positive, such as Mycobacterium tuberculosis, Legionella pneumophila, and Campylobacter jejuni, make

Vlada [557]

Answer:

B)inducible

C. )extracellular enzyme

Explanation:

Catalase is an enzyme that is engaged during the the decomposition of hydrogen peroxide to form water and oxygen, it is posses by all living organisms because of their exposure to oxygen, hence it protect the cell from oxidative damage by reactive oxygen species.

Catalase enzymes function in our liver by breaking down harmful hydrogen peroxide into oxygen and water ,during this reaction , the bubbles of oxygen gas that escape create a foam that will help to disinfect any surface touch by the raw liver during this process. Catalase enzymes are extracellular enzyme and are inducible.

6 0

3 years ago

In a population of plants, the allele for long stems (S) is completely dominant over the allele for short stems (s). If 35% of t

Sergio [31]

Answer:

The correct answer would be 48 percent.

It can be solved by using the Hardy-Weinberg equation.

p² + 2pq+ q² = 1

p + q = 1

where, p² represents homozygous dominant's frequency that is, SS in this case,

q² represents homozygous recessive's frequency that is, ss in this case,

2pq represents heterozygous dominant's frequency that is, Ss in this case.

p represents dominant allele's frequency and q represents the recessive allele's frequency.

Now, the percentage of homozygous recessive or short stems is 35%. Therefore, the frequency of homozygous recessive would be 0.35.

Thus, the value of q² = 0.35

So, q = $\sqrt{0.35}$ = 0.59 which is approximately equals to 0.6.

As p + q = 1 so, q = 1 - 0.6 = 0.4

The frequency of heterozygous (Ss) = 2pq = 2(0.6)(0.4) = 0.48

Hence, the frequency of heterozygous would be 48 percent.

8 0

3 years ago