BIOLOGY HIGH SCHOOL

Which term describes the chromosomal abnormality of having three copies of a single chromosome? haploidy diploidy triploidy tetraploidy

Answers

Answer 1
Answer: Triploidy, because "tri" means three. 
Answer 2
Answer: Triploidy. 

Check the prefixes on each word:
Di= 2
Tri= 3
Tetra=4

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Unlike T lymphocytes, B lymphocytes
In mitosis or a single cell, the nucleus

Question 4 DNA replication of a single DNA molecule is referred to as semiconservative because


A.
all the DNA strands in the two DNA molecules will have both parental and newly synthesized DNA.

B.
it results in two nonidentical DNA molecules.

C.
each of the two DNA molecules will consist of one parental strand and one newly synthesized strand.

D.
of the two DNA molecules, one is made up totally of parental DNA, while the other is entirely newly synthesized DNA.

E.
one DNA strand is replicated continuously, while the other must be replicated discontinuously.

Answers

The answer is C because after separation 2 new daughter DNA molecules are created. Meaning that there are 4 strands 2 of them are parental and 2 of them are new.

Why is it important to know a person's rhesus factor before a blood transfusion?

Answers

It is important to know a persons Rhesus factor before a blood transfusion because A patient who is Rh- can receive only Rh- blood.

The answer is:

D) A patient who is Rh– can receive only Rh– blood.


Hope it helps!

What molecule must be removed in order to rebuild ADP into ATP?A. A water molecule


B. A ribose sugar


C. A phosphate molecule

Answers

Hewwoo :3


What molecule must be removed in order to rebuild ADP into ATP?

In order to answer your question, you must look at the chemical structures of ADP and ATP.  ATP has an adenine that goes by 9' nitrogen to 1' carbon (ribose sugar). In turn, the 5' carbon is attached to a triphosphate molecule. You can see that there's no such thing as a water molecule there. Thus, a water molecule was presumably removed during chemiosmotic phosphorylation.

Answer: A. a water molecule

If an enzyme is absent during polypeptide production, a mutation can occur.

Answers

If you are asking if it is a true or false statement, it is a false statement. A mutation cannot possibly occur during polypeptide production or any protein synthesis or process. However, mutation may occur if the protein or enzyme is involved in any DNA replication or transcription process.

which structure in female mammals produces milk to nourish young? a. placenta b. kidney c. mammary gland d. cloaca

Answers

the answer is ...c. mammary gland ..

Hope it helps !!!!
Mammary Glands are a part of the breast that allows new mothers to feed their infant child

When the cell engulfs large fragments of matter, it is called _____.endocytosis
exocytosis
pinocytosis
phagocytosis

Answers

The answer is phagocytosis.

Phagocytosis is process in which cell engulfs large fragments of matter, for example, bacteria, mineral particles, dead cells. These fragments form a phagosome which fuses with lysosome and form a phagolysosome. Inside the phagolysosome, enzymes and toxins break down those fragments.

Phagocytosis is actually a specific form of endocytosis. Endocytosis is process in which cell engulfs molecules, such as proteins. Pinocytosis is fluid endocytosis. Exocytosis is the opposite process to endocytosis. In exocytosis cell transport molecules, such as proteins, out of cell.
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