BIOLOGY 101 TEST 3 QUESTIONS
AND ANSWERS
What is synapsis? - Answer- When homologous chromosomes come together in
intimate association forming Tetrads
What stage does crossing over occur? - Answer- Prophase 1
What is crossing over? - Answer- non sister chromatids break off and witch places
Crossing over allows for greater - Answer- genetic variation
In metaphase 1 they line up _______ than in mitosis - Answer- differently
What stage do homologous chromosome pairs line up side by side down the equatorial
plate? - Answer- metaphase 1
What stage does the spindle apparatus fully formed? - Answer- Metaphase 1
What stage do diploid cells turn into 2 haploid daughter cells? - Answer- Telophase 1
At the end of meiosis one ____ _______ is over. - Answer- reduction division
What stage does only a little spindle apparatus work occur? - Answer- Prophase 2
What stage does in each cell chromosomes line up in the middle? - Answer- Metaphase
2
What stage does the spindle apparatus fully form? - Answer- Metaphase 2
What stage does spindle fibers shorten and pull sister chromatids apart to opposite
poles? - Answer- Anaphase 2
What stage begins when chromosomes are at opposite poles? - Answer- Telophase 2
What stage does cytokinesis occur? - Answer- Telephase 2
What is the end result of meiosis? - Answer- 4 haploid daughter cells
None of the 4 haploid cells are... - Answer- identical.
, Heredity is the passing of traits from 1 ______ to the next. - Answer- generation
Genetics is the study of ______. - Answer- heredity
A gene is the _____ instructions. - Answer- heredity
Gene is part of the DNA on the chromosome that codes for a _____. - Answer- trait
Locus is the location of a ____ on a chromosome. - Answer- gene
Dominant alleles mask the affect of the ______ alleles. - Answer- recessive
Dominant alleles are represented with a ____ letter. - Answer- capital
Recessive alleles are masked by ______ alleles. - Answer- dominant
Recessive alleles are represented with a ____ letter. - Answer- lowercase
For every gene a person has 2 ____ - Answer- alleles
Meiosis is what kind of reproduction - Answer- sexual
What are the two types of gametes? - Answer- egg and sperm
Where does meiosis happen? - Answer- in germ cells
Diploid cells have a ___ set of chromosomes? - Answer- full
Haploid cells have ___ a set of chromosomes? - Answer- half
Egg + Sperm = - Answer- Zygote
Reduction division happens in - Answer- meiosis
Reduction division is going from a _____ cell to a ____ cell. - Answer- diploid, haploid
Interphase is exactly like mitosis, ,what are the stages - Answer- G1:
S:
G2:
DNA chromatin forms
Meiosis 1= - Answer- reduction division
What stage does chromatin shorten and thicken? - Answer- Prophase 1
AND ANSWERS
What is synapsis? - Answer- When homologous chromosomes come together in
intimate association forming Tetrads
What stage does crossing over occur? - Answer- Prophase 1
What is crossing over? - Answer- non sister chromatids break off and witch places
Crossing over allows for greater - Answer- genetic variation
In metaphase 1 they line up _______ than in mitosis - Answer- differently
What stage do homologous chromosome pairs line up side by side down the equatorial
plate? - Answer- metaphase 1
What stage does the spindle apparatus fully formed? - Answer- Metaphase 1
What stage do diploid cells turn into 2 haploid daughter cells? - Answer- Telophase 1
At the end of meiosis one ____ _______ is over. - Answer- reduction division
What stage does only a little spindle apparatus work occur? - Answer- Prophase 2
What stage does in each cell chromosomes line up in the middle? - Answer- Metaphase
2
What stage does the spindle apparatus fully form? - Answer- Metaphase 2
What stage does spindle fibers shorten and pull sister chromatids apart to opposite
poles? - Answer- Anaphase 2
What stage begins when chromosomes are at opposite poles? - Answer- Telophase 2
What stage does cytokinesis occur? - Answer- Telephase 2
What is the end result of meiosis? - Answer- 4 haploid daughter cells
None of the 4 haploid cells are... - Answer- identical.
, Heredity is the passing of traits from 1 ______ to the next. - Answer- generation
Genetics is the study of ______. - Answer- heredity
A gene is the _____ instructions. - Answer- heredity
Gene is part of the DNA on the chromosome that codes for a _____. - Answer- trait
Locus is the location of a ____ on a chromosome. - Answer- gene
Dominant alleles mask the affect of the ______ alleles. - Answer- recessive
Dominant alleles are represented with a ____ letter. - Answer- capital
Recessive alleles are masked by ______ alleles. - Answer- dominant
Recessive alleles are represented with a ____ letter. - Answer- lowercase
For every gene a person has 2 ____ - Answer- alleles
Meiosis is what kind of reproduction - Answer- sexual
What are the two types of gametes? - Answer- egg and sperm
Where does meiosis happen? - Answer- in germ cells
Diploid cells have a ___ set of chromosomes? - Answer- full
Haploid cells have ___ a set of chromosomes? - Answer- half
Egg + Sperm = - Answer- Zygote
Reduction division happens in - Answer- meiosis
Reduction division is going from a _____ cell to a ____ cell. - Answer- diploid, haploid
Interphase is exactly like mitosis, ,what are the stages - Answer- G1:
S:
G2:
DNA chromatin forms
Meiosis 1= - Answer- reduction division
What stage does chromatin shorten and thicken? - Answer- Prophase 1
