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RideAnS [48]
3 years ago
14

PLZ I NEED HELP I WILL GIVE BRAINLIEST 1.Which material(s) or shapes and colors were used to represent the phosphate-sugar backb

one in your model of the DNA molecule?
2.Which material(s) or shapes and colors were used to represent the bases in your model of the DNA molecule?






3.What are the steps in DNA replication?






4.What would be the complementary sequence of nucleotides for the following DNA sequence: GCTAATTGCATCCGA?






5.How does the replication process ensure that new DNA molecule is identical to the original (that there are no mutations)?






6.What would you need to do to make the length of your model DNA molecule more accurately represent the length of a real DNA molecule?
Biology
1 answer:
aliina [53]3 years ago
8 0

Answer:1. Phosphate= pink 2. blue

Explanation:

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When farmers leave plant stalks in the field to reduce soil erosion, it is called ____. a. contour farming c. no-till farming b.
aleksklad [387]

Answer:

Option (C)

Explanation:

In no-till farming method, the farmer usually uses a no-till planter with the help of which they make a narrow type of trench that is sufficient enough for the seed to be grown in rows. The residue of the cover crop is allowed to place on the surface of the soil by not plowing, as a result of which the soil is protected from getting eroded and losing of moisture content. This improves soil quality.

This method helps in increasing the water content that percolates down into the soil, holding the organic matter and recycling of nutrient matters. It also expands the growth and population of microbes in the soil, which provides more nutrients to the soil and increases the fertility of the soil.

Thus, when a farmer leaves plant stalks in the field to reduce soil erosion, then it is known as no-till farming.

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5 0
4 years ago
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A circular molecule of DNA contains 1 million base pairs. If the DNA synthesis at a replication fork occurs at a rate of 100,000
lakkis [162]

Answer:

<h2>5 minutes </h2>

Explanation:

1. In bidirectional replication;  there are two replication forks, and each proceeding at a rate of 100,000 (as given in the question) nucleotides per minute.  

2. So, by  the given rate of replication, we can calculate that, it would require 5 minutes for the circular DNA molecule to be replicated by bidirectional replication because each fork synthesize  500,000 nucleotides in 5 minutes ( 100,000 per minute) ( as given, in 5 minutes × 100,000 nucleotides per minute= 500,000 and by 2 forks= 1,000,000) within the time period.  

4 0
3 years ago
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Answer: Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function.

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Explanation:

hope this helped!!!! :) :)

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Natalija [7]

Answer:

mutated dna

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