Which of the following is a common agricultural use of a mineral??

2 answers:

3 0

C The limestone lowers the acidity of the soil by neutralizing the acid in the soil because limestone is slightly basic and acids and bases neutralize each other.

ioda3 years ago

3 0

Answer: Spreading limestone on crop fields to neutralize acidic soils.

Minerals are necessary for the growth of plants growing in an agricultural field. Plants obtain minerals from the soil. Minerals like potassium, phosphorous, and nitrogen are required by the plants for their growth. Also, minerals are added to the soil of the agricultural field to maintain the pH of soil, which is desirable for specific crop growth. Limestone is a mineral useful for maintaining the pH of soil. It's primary component is calcium carbonate. It is basic in nature. It is added up to the soil to increase it's pH, with it's use soil acidity is reduced and alkalinity is increased. Therefore, it nutralize the acidic soil and makes it suitable for plant growth.

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Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?a) It changes an amino

TEA [102]

Answer:

c) It introduces a premature stop codon into the mRNA

Explanation:

Nonsense mutation is a type of point mutation (single nucleotide base is changed) which leads to premature stop codon. Stop codons are also called nonsense codons and that is way this type of mutation is called nonsense mutation. As a consequence, synthesized protein is incomplete and shorter than it should be (truncated protein), usually nonfunctional.

3 0

4 years ago

If a dna analysis reveals that a cell has 60 ng of adenine and 20 ng of cytosine, how much thymine and guanine are in the cell?

Serggg [28]

Answer:

Thymine= 60 ng

Guanine= 20 ng

The complementary base pairing occurs between adenine and thymine and guanine and cytosine bases.

Explanation:

According to the Chargaff rule, a double-helical DNA molecule has an equal number or equal amount of adenine and thymine bases since adenine always pairs with thymine. Similarly, the amount of guanine base is equal to that of the cytosine base.

Chargaff rule is based on the complementary base pairing between purine and pyrimidine bases. According to the given information, the amount of adenine is 60 ng. Therefore, the cell would have 60 ng thymine. Similarly, the amount of the cytosine base in the cell is 20 ng which means that the cell would have 20 ng of guanine base.

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3 years ago

Runner is a protein that can be used for cellular movement. The runner protein in white blood cells is 140 amino acids long whil

natta225 [31]

Answer:

There is alternate splicing of the runner mRNA.

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3 years ago

Identify how many amino acids exist in nature and make up all proteins in living organisms.

marusya05 [52]

Answer:

The answer is 20 amino acids