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FA3 Flashcards

1
Q

Why is it necessary for the DNA to replicate prior to cell division?

A

so that each daughter cell will have a complete copy of the genetic material

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2
Q

What happens during mitosis?

The cytoplasm of the cell divides.
The DNA replicates.
The cell divides.
The nucleus of the cell divides.

A

The nucleus of the cell divides.

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3
Q

Why do chromosomes have an X-shape?

because they are made of two sister chromatins

because they are made of two sister chromatids

because they are made of two sister centromeres

because they are made of two sister chromosomes

A

because they are made of two sister chromatids

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4
Q

Which cell cycle checkpoint determines whether the DNA has been replicated correctly?

A

The G2 checkpoint

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5
Q

An abnormal mass of cancer cells is called a __.

A

tumor

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6
Q

The correct order of the eukaryotic cell cycle is __.

G1→S→G2→M.

M→G1→S→G2.

S→G1→G2→M.

G1→G2→S→M.

A

G1, S, G2, M

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7
Q

Which of the following cell organelle actively participates in animal apoptosis?
(a) Vacuoles

(b) Chloroplast
(c) Nucleus
(d) Mitochondria

A

Mitochondria

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8
Q

The cell doubles the number of organelles and accumulates resources for DNA replication in which phase of Interphase cell division?

A

G2 Phase

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9
Q

The correct order of prokaryotic cell division is __.

growth → DNA replication → mitosis.

cytokinesis → DNA replication → chromosome segregation.

DNA replication→ mitosis → cytokinesis.

DNA replication → chromosome segregation → cytokinesis.

A

cytokinesis → DNA replication → chromosome segregation.

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10
Q

Which of the following is the correct sequence of apoptosis?

I. Nucleus begins to break

II. Nucleus condensation and formation of bleb

III. Phagocytosis of apoptotic bodies

A

2, 1, 3

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11
Q

What could be the cause for a cell to undergo apoptosis?

I. DNA damage

II. Nutrient deficiency

III. Radiation

A

1, 2, 3

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12
Q

Which cells undergo cell division?

A

Eukaryotes and Prokaryotes

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13
Q

___ combines the alleles of homologous chromosomes, creating new combination and increasing genetic variability.

A

Crossing-over

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14
Q

Cell division in eukaryotic cells is a complex process because of ___.

A

all of the above

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15
Q

All of the following statements are true in Necrosis EXCEPT?

A

It is planned cell death

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16
Q

Apoptosis can’t kill which of the following?
Group of answer choices

Cancer cells

Cell infected with viruses

Cell with DNA damage

Immune cells

A

Cancer Cell

17
Q

Cancer creates abnormal cells by disrupting __

A

DNA replication

18
Q

Necrosis is define as _.

he caused by factors external to the cell or tissue, such as infection, toxins, or trauma which result in the unregulated digestion of cell components.

a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

a variety of changes of stress that a cell suffers due to external as well as internal environmental changes.

A

caused by factors external to the cell or tissue, such as infection, or trauma which result in the unregulated digestion of cell components.

19
Q

_ is a diagnostic procedure that involves removing a tissue sample from a patient.

A

Biopsy

20
Q

Most routine metabolic processes occur during which phase of the cell cycle?

A

G1 Phase

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