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Mitosis & cytoplasmic division function in __
A. Asexual reproduction of a single-called eukaryotes
B. Growth & tissue repair in multicelled species
C. Gamete formation bacteria & arches
D. Sexual reproduction in plants and animals
E. Both a & b
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A duplicated chromosome has __ chromatid.
A. One
B. Two
C. Three
D. Four
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Bio Exam 4

QuestionAnswer
Mitosis & cytoplasmic division function in __ A. Asexual reproduction of a single-called eukaryotes B. Growth & tissue repair in multicelled species C. Gamete formation bacteria & arches D. Sexual reproduction in plants and animals E. Both a & b E. Both a and b
A duplicated chromosome has __ chromatid. A. One B. Two C. Three D. Four B. Two
Homologous chromosomes ____ A. Carry the same genes B. Are the same shape C. Are the same length D. All of the above D. All of the above
Most cells spend the majority of their lives in ____ A. Prophase B. Metaphase C. Anaphase D. Telophase E. Interphase F. D and e E. Interphase
The spindle attaches to chromosomes at the ___ A. Centriole B. Contractile ring C. Centromere D. Centrosome C. Centromere
Only___ is not a stage of mitosis A. Prophase B. Metaphase C. Interphase D. Anaphase C. Interphase
In intervals of interphase, G stands for _____. A. Gap B. Growth C. Gey D. Gene B. Growth
Interphase is the part of the cell cycle when ____. A. A cell ceases to function B. A cell forms it’s spindle apparatus C. A cell grows and duplicates its DNA D. Mitosis proceeds C. A cell grows and duplicates its DNA
After mitosis, the chromosomes number of a descendant cell is ____ the parent cell’s. A. The same as B. One half of C. Rearranged compared to D. Doubled compared to A. The same as
A plant cell divides by the process of ___ A. Telekinesis B. Nuclear division C. Fission D. Cytokinesis D. Cytokinesis
BRCA1 and BRCA2 ___ A. Are checkpoint genes B. Are proto-oncogenes C. Encode tumor suppressor D. All of the above D. All of the above
___ are characteristics of cancer. A. Malignant cells B. Neoplasms C. Tumors A. Malignant cells
Lump of cells Tumor
Made of microfilaments Contractile ring
Divides plants cell Cell plate
Organize the spindle Centrosomes
Caused by metastatic cells Cancer
Made of microtubles Spindle
Indention Clevage furrow
Shortens with age Telomere
Sister chromatids move apart Anaphase
Chromosomes start to condense Prophase
New nuclei form Telophase
All duplicated chromosomes are aligned at the spindle equator Metaphase
DNA replication Interphase
Cytoplasmic division Cytokinesis
Different forms of a gene Alleles
Useful for varied offspring Males
May be none between meiosis 1 and meiosis 2 Interphase
Chromosomes lined up Metaphase 1
Haploid Gametes
Form at fertilization Zygotes
Mash up time Prophase
The main evolutionary advantage of sexual over asexual reproduction is that it produces _____ A. More offspring per individual B. More variation among offspring C. Healthier offspring B. More variation among offspring
Meiosis is a necessary part of sexual reproduction because it ___. A. Divides two nuclei into four new nuclei B. Reduces the chromosomes number for gametes C. Produces clones that can cross over B. Reduces the chromosomes number for gametes
Meiosis ____. A. Occurs in all eukaryotes B. Supports growth and tissue repair in multi-celled species C. Gives rise to genetic diversity among offspring D. Is part of the life cycle of all cells C. Gives rise to genetic diversity among offspring
Sexual reproduction in animals requires ____ A. Meiosis B. Fertilization C. Germ cells D. All of the above D. All of the above
Meiosis ___ the parental chromosomes number A. Doubles B. Halves C. Maintains D. Mixes up B. Halves
Dogs have a diploid chromosome number of 78. How many chromosomes do their gametes have? A. 39 B. 78 C. 156 D. 234 A. 39
The cell pictured to the right is in which stage of nuclear division A. Anaphase B. Anaphase 1 C. Anaphase 2 D. None of the above C. Anaphase 2
Crossing over mixes up _____. A. Chromosomes B. Alleles C. Zygotes D. Gametes B. Alleles
Crossing over happens during which phase of meiosis? A. Prophase 1 B. Prophase 2 C. Anaphase 1 D. Anaphase 2 A. Prophase 1
____ contributes to variation in traits among the offspring of sexual reproduces. A. Crossing over B. Random attachment of chromosomes to spindle poles C. Fertilization D. Both a and b E. All are factors E. All are factors
Which of the following is one of the very important differs between mitosis and meiosis? A. Chromosomes align midway between spindle poles only in meiosis. B. Homologous chromosomes pair up only in meiosis C. DNA is replicated only in mitosis D. Sister B. Homologous chromosomes pair up only in meiosis
Created by: Jasminemarisa
 

 



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