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dolphi86 [110]
3 years ago
8

The organic compounds that scientist use to cut, copy, and move segments of DNA are

Biology
2 answers:
Anna007 [38]3 years ago
4 0

Answer:

The organic compounds that scientists use to cut copy and move segments of DNA are enzymes

kakasveta [241]3 years ago
4 0

The organic compounds that scientist use to cut, copy, and move segments of DNA are enzymes.

<u>Explanation: </u>

During the process related to DNA, the organic compound which is used in the process is called as enzymes. For each steps in the process, enzymes are employed. In order to cut the DNA into small pieces, a enzyme called restriction enzymes are used.

For copying the required DNA sequence, polymerase is used and to join the segmented DNA into a single strand DNA, ligase is used. All the three organic compounds used in the process are nothing but enzymes.

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The Golgi apparatus packages and sorts substances for delivery to different parts of the cell or outside the cell. Which cell or
Nataly_w [17]
Flattened membranous sacs; packages proteins into vesicles for secretion, modifies proteins that become part of cell membranes, and packages enzymes into lysosomes. Also called Golgi complex or Golgi body.
5 0
3 years ago
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Describe two factors that are responsible for regulating the cell cycle. What is their role in the regulation process?
finlep [7]

Answer:

The cell cycle is controlled by many cell cycle control factors, namely cyclins, cyclin-dependent kinases (Cdks) and cyclin-dependent kinase inhibitors (CKIs). Cyclins and Cdks, which are positive regulators of the cell cycle, activate cell cycle factors that are essential for the start of the next cell cycle phase.

Explanation:

Listen to pronunciation. (sel-SY-kul REH-gyoo-LAY-shun) Any process that controls the series of events by which a cell goes through the cell cycle. During the cell cycle, a cell makes a copy of its DNA and other contents, and divides in two.

3 0
3 years ago
Analyze and conclude 7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why. 8. e
Digiron [165]
<span>7. which, if any, of the blood samples tested cna the patient with type b+ blood receive? explain why.
It can't be answered because you didn't put the sample test result


8. explain how you were able to use your knowledge of how different types of blood react with anti-a, anti-b, and anti Rh antibodies to determine the blood types of the four samples.
If the blood react with anti-a, then the blood must not have A antigen
</span>If the blood react with anti-b, then the blood must not have B antigen
If the blood react with anti Rh, then the blood must not have Rh antigen
Based on the antigen, you can conclude the result as:
react with anti A= blood type B
react with anti B= blood type A
react with anti A and anti B= blood type O
react with anti Rh= Rh-
not react with anti Rh= Rh+
<span>
9. if a person has type a blood, he or she would have antibodies for what blood type?
Type A blood has antigen A. So that person should not have anti-A antigens. 
The person should have anti-B antibodies because it was a foreign object to him. Depends on the Rhesus type, he can have Rh antibodies too.

10. why is type o negative blood known as the universal donor? why is o positive not a universal donor?

Type O blood doesn't have antigen-A or antigen-B. That means the blood cells won't trigger any reaction on Type A, B, AB, or O blood. Negative rhesus also means that the blood is safe for Rhesus negative or Rhesus positive type. 

Positive O blood type has rhesus antigen, so it will trigger a reaction in Rhesus negative type. </span>
8 0
3 years ago
Read 2 more answers
“PKU” is an inherited disease caused by a recessive allele. If a woman and a man are both carriers, where P is the normal allele
user100 [1]

Answer:

Option A, 1/64

Explanation:

The genotype of a carrier female would be Pp

The genotype of a carrier male would be Pp

When these two adults are crossed , the following offspring are produced

Pp x Pp

PP, Pp, Pp, pp

Thus out of four children 3 children have normal phenotype but two are carrier.

So probability of having one normal  child (with genotype PP) is \frac{1}{4}

So the probability of  three normal children is

\frac{1}{4} *\frac{1}{4} *\frac{1}{4} \\= \frac{1}{64}

Hence, option A is correct

6 0
4 years ago
Think about a petal plucked from its flower. Is it the petal alive according to the characteristics of life ? Why or why not
Marina CMI [18]

The petal would be dead. The petal as a whole is dead, but the cells within it are more or less still alive for the meantime as they don't die immediately after being plucked.

So, your answer would be that The petal is dead.

4 0
3 years ago
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