Reword the following statement to make it true: Nucleoli are membrane-bounded structures present in the eukaryotic nucleus. A) Nucleoli are two lipid bilayers that surround nucleus in eukaryotic cells.
B) Nucleoli are large protein complexes that cross the nuclear envelope in eukaryotic cells.
C) Nucleoli are thin, dense meshworks of fibers lining the inner surfaces of the inner nuclear membranes of most eukaryotic cells.
D) Nucleoli are structures made of DNA, RNA, and protein that are present in the eukaryotic nucleus.

Answers

Answer 1

Answer:

Answer:

Option-D

Explanation:

The nucleolus is a structure present in the nucleus of the cell which is important for the cell.

The nucleolus provides the site of transcription of the rRNA genes and the enzymes required for transcription. The nucleoli appear condensed structure as the rRNA genes, some portion of DNA and the proteins in the form of the enzymes like RNA polymerase I.Therefore, nucleoli are made of the DNA, RNA and the proteins.

Thus, Option-D is correct.

Answer 2

Answer:

Answer: Option D

Explanation:

The nucleolus is the largest structure which is found in the nucleus of the eukaryotic cells. It is the main site for the ribosome biogenesis.

Nucleoli consists of DNA and RNA, proteins and it forms around the nucleolar organizing regions. it also help in cell signaling.

These are like envelops which bounds the nucleus inside it. In case of the treatment of cancer, the main target is nucleolus.

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DNA in the nucleus of the cell is thin and threadlike and called _

If an electron is gained, the atom has a ? Charge

Answers

protons are positive
electrons are negative
neutrons are neutral

If an atom gains an electron, it will have a negative charge.

What is the difference between sensory and motor neurons?

Answers

Sensory neurons carry signals from the outer parts of your body into the central nervous system. Motor neurons carry signals from the central nervous system to the outer parts of your body including muscles, skin and glands.

Sensory neurons.. Well sense any feeling, taste, sound around you. They send messages to your brain. Motor neurons are the nerves that react to the messages

Galaxies whose shape seems to follow no set pattern are classified as A. irregular.
B. spiral.
C. barred spiral.
D. elliptical.

Answers

The correct answer is (a) irregular.

An irregular galaxy does not have any distinct or regular shape. They do not belong to any any regular class of the Hubble sequence. They are sometimes chaotic in appearance. Structurally these galaxies do not have spiral arm or nuclear bulge. Collectively these galaxy make up one fourth of all galaxies. They are small in size and one tenth the mass of Milky way galaxy.

Galaxies whose shape seems to follow no set pattern are classified as
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So your correct answer would be your choice A.
hope this helps :)

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.

Which cell part contains directions for cell growth and reproduction?a. cell wall
b. plasma membrane
c. nucleus
d. pores

Answers

The answer is C: nucleus. Hope this helps. Sorry this is late.

Answer:

c. nucleus

Explanation:

A solution with a pH of 7.0 isA. acidic.
B. neutral.
C. weakly basic.
D. strongly basic.

Answers

pH 1 is strongly acidic
pH 7 is neutral
pH 14 is strongly basic

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