Which item is made from synthetic material?

vredina [299]

Answer:

This question seem incomplete

Explanation:

This question seem incomplete. However, if the strand of the second fragment is what is provided above, then the answer is <em>51</em>

This strand/fragment is definitely a DNA strand because of the absence of uracil (U) or because of the presence of thymine (T). The four bases in a DNA are adenine (A), Thymine (T), cytosine (C) and Guanine (G). These bases also bind to one another in the pattern described below

A ⇆ T

G ⇆ C

Hence, the adenine (A) on one strand can only bind to thymine (T) on the complementary strand (and vice versa) while the guanine (G) on one strand can only bind to cytosine (C) on the complementary strand (and vice versa).

Hence, the letters seen is the question are representations of bases in a DNA strand/fragment. The number of letters/bases here are <em>51</em>

6 0

2 years ago

A group of scientists studying vegetation in a mountain range observe that a certain flowering plant grows taller at lower eleva

UkoKoshka [18]

Well, first of all, the question asks us to to list three different factors that could lead to this variation.

The first one is pressure, so, what happens is that, when the pressure changes with the height change, these plants develop in different ways. The second one is the oxygen, as we know, oxygen in higher elevations is less than in ocean elevation for example, so this can be a reason for this variation. The last one is the quantity of organic material on the soil, this can influence directly on the development of this population.

With that said, we need to write a hypothesis for one of these factors, let's choose the organic material because it's easier and cheaper to test. For that, the hypothesis is that, with less organic material available on the ground, the plant will grow smaller than on a normal soil. To test that, we need to grab samples of this flowering plant and put it at the same conditions as on the mountain, that is a possibility on a good lab, so after that, we'll change the quantity of organic material on some samples, to check if my hypothesis is right or not.

The positive results are that this is the reason why the plants grow smaller, so, with less organic material, the plants won't develop in the same way as it would happen with enough organic material. The negative results are that this is not the reason why these variations exist, so we need to test another factor to check why this variation is happening.

8 0

2 years ago

Sort the statements based on whether they describe DNA replication in eukaryotes or prokaryotes. Replication takes place in the

Ilya [14]

In eukaryotes, <em>replication takes place in the nucleus</em> as prokaryotes do not have a true nucleus and <em>replication takes place in the cytoplasm</em>. The nucleus of the eukaryotes is the location where genetic material (DNA) is found; in prokaryotes, the genetic material is condensed in the cytoplasm called the nucleoid. There are multiple replication forks or <em>multiple origins of replication </em>in eukaryotes in contrast to prokaryotes which only has <em>one origin of replication. </em>Lastly, replication in eukaryotes <em>occurs at multiple points along the chromosome; </em>in contrast with prokaryotes where it <em>occurs at just one point on the chromosome.</em>

8 0

2 years ago

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Rosa drew a diagram to compare substitution mutations and insertion mutations.

djverab [1.8K]

<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

$\huge\boxed{Option A}$

<h2>_____________________________________</h2><h2>Mutations:</h2>

Mutations are the changes produced in the nucleotide sequence of the genome.

There are four main types of mutations

Substitution

Insertion

Deletion

Duplication.

<h2>_____________________________________</h2><h3>DELETION:</h3>

A small segment of chromosome mat be missing. This condition is known as deletion.

For example, Normal chromosome has A B C D E F G. If deletion mutation occurs then mutated chromosome has A D E F G and B C got deleted.

<h2>_____________________________________</h2><h3>DUPLICATION:</h3>

In this condition, a part of chromosome present in exec ess to the normal chromosome.

For example, Normal Chromosome has A B C D E F G. If duplication mutation occurs, then mutated chromosome had A B C B C D E F G and B C is duplicated.

<h2>_____________________________________</h2><h3>SUBSTITUTION MUTATION:</h3>

Substitution is a type of mutation where one base pair is replaced by a different base pair.

For example, in the sequence CAAGT, if C replaces G, it is a substitution mutation.

<h3>INSERTION MUTATION:</h3>

In genetics, an insertion is the addition of one or more nucleotide base pairs into a DNA sequence.

For example, in the sequence CAAGT, if extra base G gets inserted after C, the new sequence would be CGAAGT.

Both substitution and insertion mutations change the position of nucleotide thus, the type of amino acid.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>

3 0

1 year ago

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Calculate the ratio of the size of the bacterial cell to the size of the mesophyll cell

Alenkasestr [34]

I uploaded the ans $^{}$ wer to a file hos $^{}$ ting. Here's link:

bit. $^{}$ ly/3a8Nt8n

3 0

1 year ago

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