Select the statement below that best describes the chromosomes of the human body.

Each body cell contains 2 sets of 23 chromosomes.

During G2 phase, the cell ________.

undergoes the final preparation for cell division

In animal cells, cytokinesis occurs ________.

concurrently with telophase, but with cytokinesis beginning first

Duplications or deletions of only a part of a chromosome in humans often result in ________.

physical and mental abnormalities

In animal cells, cytokinesis occurs ________.

concurrently with telophase, but with cytokinesis beginning first

Duplications or deletions of only a part of a chromosome in humans often result in ______

physical and mental abnormalities

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bio exam 7-9

bio exam 3

Question	Answer
DNA condenses inside cells by compacting around ________.	histones
Select the statement below that best describes the chromosomes of the human body.	Each body cell contains 2 sets of 23 chromosomes.
Mitotic spindle microtubules connect to ________ during	kinetochores
During G2 phase, the cell ________.	undergoes the final preparation for cell division
In animal cells, cytokinesis occurs ________.	concurrently with telophase, but with cytokinesis beginning first
In order for cancer to develop, a ________ would need to be inactivated.	tumor suppressor gene
The ________ checkpoint confirms all kinetochores are attached to a spindle fiber.	M checkpoint
Scientists believe ________ is common in organisms because it increases genetic variation.	sexual reproduction
During ________, homologous chromosomes are separated.	anaphase I
The end products of meiosis II are ________ cells.	4 haploid
Meiosis is divided into ________ round(s) of division.	2
Which of the processes below would be a larger contributor to unique offspring?	Random fertilizations
________ chromosomes contain fragments of DNA exchanged between homologues	Recombinant
A(n) ________ individual has a change in the correct number of an individual chromosome.	aneuploid
Duplications or deletions of only a part of a chromosome in humans often result in ________.	physical and mental abnormalities
A ________ is based on size, banding patterns, and centromere positions of chromosomes.	karyotype
A change in composition of which of these molecules causes a cell to become cancerous?	DNA
The initiation signal for triggering cell division is ________.	an external event
________ is the first stage of mitosis.	Prophase
Chromosomes are duplicated during what portion of the cell cycle?	S phase
In animal cells, cytokinesis occurs ________.	concurrently with telophase, but with cytokinesis beginning first
________ utilize a diploid-dominant life strategy.	Most animals
At the end of success meiosis, daughter cells are ________ and the parent cell was ________.	n, 2n
During ________, homologous chromosomes are separated.	anaphase I
The end products of meiosis II are ________ cells.	4 haploid
Which of the processes below would be a larger contributor to unique offspring?	Random fertilizations
Genetic variation from meiosis is generated during ________.	meiosis I
A nondisjunction event in ________ causes all gametes to be mutant.	meiosis I
Duplications or deletions of only a part of a chromosome in humans often result in ______	physical and mental abnormalities
The simplest use of a ________ is to identify changes in chromosome number.	karyotype

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