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Meiosis II
Mitosis/
Meiosis
RNA/PS
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Chromosome
numbers
Meiosis I
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N is called…
What is haploid?
“Half” the number of
chromosomes.
What is Haploid?
Haploid number of human
chromosomes.
What is 23?
Beginning of meiosis cells are..
DIPLOID
Which phases of meiosis are diploid?
What are Prophase I, Metaphase
I, Anaphase I and Telophase I?
Number of chromosomes present
during Meiosis I.
What is diploid?
Stage of Meiosis I that the cells
split in to two.
What is telophase I?
Stage that crossing over occurs.
What is prophase?
Two pair of homologous
chromosomes paired during
prophase are called..
What is tetrad?
Describe crossing over, when
does it occur and what is the
result.
Crossing over is when the
chromatids of the homologous
chromosomes exchange
information, by “crossing over”.
This happens during prophase I
and results in an exchange of
genetic material
Describe the number of
chromosomes in each stage of
Meiosis I.
Prophase I-diploid, Metaphase Idiploid, Anaphase I-diploid,
Telophase I-diploid (until the
cells separate
Number of cells at the end of
Meiosis II
What is 4?
Are the cells of Meiosis diploid,
haploid or both?
haploid
Describe the chromosomes at the
end of meiosis.
4 Haploid and genetically
different.
What does NOT happen between
Telophase I and Prophase II, that
keeps the number of
chromosomes the same?
Interphase does not occur, thus
replication does not double the
number of chromosomes.
Explain why only one egg is
formed in meiosis in humans.
4 cells are formed, but because
the egg requires a lot of
cytoplasm the other 3 cells are
not usable, and are called polar
bodies.
A cell with 10 chromosomes in
Meiosis I will have ? At the end
of meiosis?
5
Type of cells that under go
mitosis.
Somatic cells or autosomal cells
Kind of cells that result in
gametes.
Reproductive cells
Mitosis cells start as diploid and
result in?
Diploid
List 3 similarites and 3
differences of mitosis and
meiosis.
Mitosis/Meiosis Similarities
Similar phases,both start with
interphase,both start with one
cell. Differences:
Mitosis/Meiosis :somatic
cells/reproductive cells, results in
diploid/haploid cells, results in
genetically identical
cells/genetically different cells
The 3 types of RNA
mRNA, tRNA, rRNA
Process of protein synthesis that
matches codons and anticodons.
translation
Process that RNA creates a
template of DNA.
Transcription
Two major types of mutations
Gene Mutations and
Chromosomal Mutations
Which Type of mutation will
NOT form a frame shift?
Substitution
Explain translation . Include:
mRNA, tRNA, codon, anticodon,
amino acids and polypeptide
chains
Translation decodes the mRNA.
Codons of the mRNA match with
complement anticodons of the
tRNA and the amino acids carried
on the tRNA are released and
create a chain of amino acids
called polypeptide chains.