Chapter 08 Core Content
part b
meiosis I only
Cytokinesis often, but not always, accompanies _
telophase
At the end of _____ and cytokinesis, haploid cells contain chromosomes that each consist of two sister chromatids.
telophase I
At the end of _____ and cytokinesis there are four haploid cells.
telophase II
part d
10
A diploid organism whose somatic (nonsex) cells each contain 32 chromosomes produces gametes containing _____ chromosomes.
16
Normal human gametes carry _____ chromosomes.
23
Synapsis occurs during __
Prophase I
During _____ a spindle forms in a haploid cell.
Prophase II
How is sexual reproduction different from asexual reproduction?
Sexual reproduction requires fertilization of an egg by a sperm
What name is given to this process?
asexual reproduction
Which of these gametes contains one or more recombinant chromosomes?
b and c
Replication of chromosomal DNA occurs
before a cell divides
Bacteria divide by:
binary fission
Asexual reproduction __
can produce offspring genetically identical to the one single parent
part c
centromere
Most of an organism's DNA is carried by its
chromosomes
Which of these cells is (are) haploid?
C and D
The first step of bacterial replication is _
DNA replication
Nucleoli are present during _____.
Interphase
Can you label the stages of the cell cycle?
Interphase Prophase Metaphase Anaphase Telophase
The process of meiosis accomplishes which of the following?
It produces four haploid cells and allows exchange of genetic material between homologous chromosomes
Which of the following statements is correct?
Meiosis results in gametes that are used in reproduction.
Chapter 08 Core Content Video Tutor Session Quiz: Mitosis vs. Meiosis Part A
Mitosis
Can you label the events and stages of mitosis?
a Mitotic spindle forming b Sister chromatids centered c chromosomes separating d Nuclear envelops forming e Interphase f Prophase g Metaphase h Anaphase i Telophase and cytokenesis
Can you identify the structures of a chromosome?
a Pair of homologous chrmosomes b Centromere c Sister chromatids
Can you correctly label this diagram of the human life cycle?
a gametes b haploid c meiosis d fertilization e diploid f zygote g mitosis
What is different concerning the DNA in bacterial cells as opposed to eukaryotic cells?
all of the above are differences between prokaryotic and eukaryotic DNA
Centromeres divide and sister chromatids become full-fledged chromosomes during __
anaphase
Homologous chromosomes migrate to opposite poles during
anaphase I
During _____ sister chromatids separate.
anaphase II
Sexual reproduction requires the cellular process of __________ followed by _
meiosis ... fertilization
Meiosis II typically produces _____ cells, each of which is __
four ... haploid
Which processes lead to most genetic variation in sexually reproducing organisms?
independent orientation of chromosomes in meiosis random fertilization crossing over
Gametes are produced by _
meiosis
During _____ chromosomes align single file along the equator of a haploid cell.
metaphase II
Spindle fibers attach to kinetochores during
prometaphase
Chromosomes become visible during _
prophase
part e
the start of meiosis I
Meiosis I produces _____ cells, each of which is ___
two ... haploid
During prophase a homologous pair of chromosomes consists of ___
two chromosomes and four chromatids