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- 1. Multiple Choice
A human body cell has 46 chromosomes. Which diagram represents mitosis in a human body cell?
- 2. Multiple Choice
Which part of a DNA molecule represents encoded information?
phosphate
sugar
guanine
hydrogen bond
- 3. Multiple Choice
An animal’s somatic cells contain 2n chromosomes. What happens to the number of chromosomes in the animal’s gametes?
The number is reduced to n by mitosis.
The number is reduced to n by meiosis
The number is increased to 4n by mitosis.
The number is increased to 4n by meiosis.
- 4. Multiple Choice
At the end of the mitotic cell cycle, a cell divides into two cells. What must happen before the cell divides?
The number of organelles doubles.
Chromosomes must be copied.
Four nuclei must be formed.
The membrane thickens.
- 5. Multiple Choice
A cell that starts out with a diploid number of 46 chromosomes and ends up with a haploid number of 23 chromosomes. What process did this cell go through?
Binary Fission
Conjugation
Meiosis
Mitosis
- 6. Multiple Choice
Meiosis contributes to the process of reproduction by producing what type of cell?
aneuploid
diploid
haploid
polyploid
- 7. Multiple Choice
Binary fission produces offspring that are _____________________ the original
similar to
identical to
opposite of
different than
- 8. Multiple Choice
Which of the following is a difference between mitosis and meiosis?
Mitosis occurs in sex cells and meiosis occurs in body cells.
Mitosis occurs in body cells and meiosis occurs in sex cells.
Mitosis occurs in both body cells and sex cells while meiosis is only in sex cells.
There is no difference between these two processes.
- 9. Multiple Choice
Which process that occurs during meiosis contributes to a germ cell having unique genetic material?
transcription
replication
crossing over
spindle formation
- 10. Multiple Choice
Which is the result of mitosis?
two identical nuclei
four unique cells
a decrease in genes
a new protein
- 11. Multiple Choice
The muscle cells of an elephant contain 62 chromosomes. How many chromosomes are in an elephant egg cell?
31
62
122
244
- 12. Multiple Choice
The muscle cells of an elephant contain 62 chromosomes. How many chromosomes are in an elephant egg cell?
G1
anaphase
cytokinesis
interphase
- 13. Multiple Choice
Before cell reproduction or mitosis can proceed, what is the correct sequence of steps that MUST first occur?
chromosome replication, chromosome checking and repair, growth
growth of cytoplasm, duplication of cellular organelles, chromosome replication
replication of chromosomes, growth, duplication of cellular contents and organelles
growth, duplication of cell organelles, chromosome replication, repair of chromosomal errors
- 14. Multiple Choice
Before mitosis begins, a cell makes a copy of the DNA in the nucleus. What term is used to describe this process of making an exact copy of the DNA?
duplication
fertilization
hybridization
replication
- 15. Multiple Choice
What is the outcome when a cell undergoes meiosis?
Two diploid cells
Two haploid cells
Four diploid cells
Four haploid cells
- 16. Multiple Choice
Which of these BEST describes the primary goal of meiosis?
The nucleus is divided without mutation.
A single cell divides into two daughter cells.
All chromosomes are replicated and passed on to the daughter cells.
Daughter cells are produced with only half the chromosomes of the parent cell.
- 17. Multiple Choice
DNA is packaged in the nucleus of the cell in a structure called ________________ in which the DNA coils around proteins called histones many times over. When cell replication occurs, the DNA condenses even more into a ___________________.
chromatin, chromosome
chromosome, chromatin
nucleosome, chromosome
chromosome, nucleosome
- 18. Multiple Choice
During asexual reproduction in a yeast cell, two daughter buds are formed. What is true about the daughter buds formed in the process?
Both daughters will have the same genetic information as the parent cell.
Both daughters will have a part of the genetic information of the parent.
Both daughters will have different information, which is very different from the parent.
Both daughters will have the same genetic information, which is different from the parent.
- 19. Multiple Choice
During mitosis, chromosomes are moved and separated through the use of spindles composed of ________________ structures.
endoplasmode
integument
macrofilament
microtubule
- 20. Multiple Choice
Bacteria can reproduce quickly by means of binary fission. Because of this, after binary fission
the offspring will have traits of both parents.
there is genetic variation among the offspring.
all the offspring will be genetically identical.
none of the offspring will be genetically like the parents.
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