Chapter 6 Biology Test

What are the stages of interphase

G1, S, G2

the centromeres split and sister chromatids separate during which phase of mitosis

anaphase

Cells that demonstrate anchorage independence

are primed to become metastatic

all of the following contribute to genetic uniqueness EXCEPT

binary fission

which of the following is a difference between binary fission and mitosis

breakdown of the nuclear envelope

which of the following pairs of processes encompasses the entire eukaryotic cell cycle

cell division and interphase

Chromosomes in a homologous pair

consist of one maternal and one paternal chromosome

Which of the following is associated with mitosis

equal distribution of chromosomes

Which of the following is NOT a factor that influences a cell's progression through the cell cycle?

gametes

When a germ cell has completed both rounds of meiosis, the resulting cells are

haploid and each of the four daughter cells has half the number of chromosomes as the starting cell

cancers are groups of cells that divide rapidly and uncontrollably. Thus, cancer cells

have a relatively short G1 phase

which of the following is a possible consequence of disabling the G2 checkpoint in the cell cycle

incompletely replicated DNA may be passed to the two daughter cells; these cells could be lacking in specific genes or chromosomes and would likely not survive

which of the following statements about cell division is correct

it is the process by which organisms reproduce and grow

in animals, which of the following distinguishes meiosis from mitosis

mitosis is used for the reproduction of nearly all body cells, whereas meiosis creates only specific cells for sexual reproduction

during meiosis 1 the chromosome number is reduced to haploid by separating

one of each homologous pair into two different daughter cells

Which of the following examples accurately describes how crossing over results in genetic diversity

paternal chromosome 7 exchanges segments of DNA with maternal chromosome 7

select the steps in meiosis that generate genetic diversity

prophase and metaphase of meiosis 1

select the correct order of mitotic cell division stages

prophase, metaphase, anaphase, telophase

which of the following cell types can be produced by meiosis

sperm

an activley dividing cell has six chromosomes. How many sister chromatids are present within this cell at the end of the G2 phase?

12