FREE AND STUDY GAMES ABOUT CELL CYCLES TEST

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FREE AND STUDY GAMES ABOUT CELL CYCLES TEST

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -45 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: gametes have

Answer:

one allele for each gene

Question 2: the first phase of mitosis is called

Answer:

prophase

Question 3: chromosomes form tetrads during

Answer:

prophase I of meiosis

Question 4: how do cancer cells differ from normal cells

Answer:

cancer cells cannot control their growth and division rates whereas regular cells grow and divide at a consistent, normal rate

Question 5: proteins called ______ regulate the timing of the cell cycle in eukaryotic cells

Answer:

cyclins Question 6: if it takes a cell one hour to undergo mitosis, about 50 minutes of the time would be spent in prophase

Answer:

false

Question 7: unlike mitosis, meiosis results in the formation of

Answer:

four genetically unique cells

Question 8: compared to small cells, large cells have trouble

Answer:

moving needed materials in and waste products out

Question 9: which event occurs during interphase

Answer:

the cell grows

Question 10: unlike mitosis, meiosis results in the formation of

Answer:

haploid cells

Question 11: as a cell becomes larger, its

Answer:

volume increases faster than its surface area

Question 12: typically, the longest phase of the cell cycle is metaphase

Answer:

false

Question 13: when during the cell cycle is the cell's DNA replicated

Answer:

the S phase Question 14: which of the following represents the phases of mitosis is the correct order

Answer:

prophase, metaphase, anaphase, telophase Question 15: cell division solves the problem of cell growth by increasing cell volume

Answer:

false Question 16: cancer is a disorder in which some cells have lost their ability to control their

Answer:

growth rate

Question 17: a cell splits into two daughter cells during telophase

Answer:

false Question 18: an organism's gametes have ______ the number of chromosomes found in that organism's body cells

Answer:

half Question 19: what would happen if the gametes of a species had the same number of chromosomes as the body cells

Answer:

when the gametes fused during fertilization, the offspring would have more chromosomes in their body cells than the parents have. the species' chromosome number would not be constant Question 20: during metaphase, each chromosome is connected to a ______ at its centromere

Answer:

spindle fiber

Question 21: if an organism's diploid number is 12, it's haploid number is

Answer:

6

Question 22: explain the mechanisms of sex determination in humans

Answer:

gametes are responsible for sex of child. if 23rd chromosome pair is xx, it will be a girl. if it is xy, it will be a boy. the y chromosome can only come from a male, so the father of the child is essentially responsible for the gender of the baby

Question 23: cell division is represented in figure 10-1 by letter

Answer:

D

Question 24: what is shown in figure 11-3

Answer:

crossing over

Question 25: as a cell grows it

Answer:

all of the above Question 26: during normal mitotic cell division, a parent cell having four chromosomes will produce two daughter cells, each having

Answer:

four chromosomes

Question 27: gametes are produced by the process of

Answer:

meiosis

Question 28: explain what is meant by homologous chromosomes

Answer:

the two sets of chromosomes found in a body cell that have the same genes on them. one of these chromosomes is from the mother and the other is from the father