Jensen Exam 3 questions well
answered graded A+
What is the purpose of mitosis? - correct answer ✔✔ To create exact replicas of a cell through
cell division
What is the purpose of meiosis? - correct answer ✔✔ to take the chromosomes in diploid cells
and create haploid cells (sperm and egg cell)
Stages of mitosis - correct answer ✔✔ 1. Prophase
2. Metaphase
3. Anaphase
4. Teleophase
Mitosis stages: picture - correct answer ✔✔
Meiosis stages: picture - correct answer ✔✔
Structure of DNA: picture - correct answer ✔✔
The difference between a chromosome and chromatid? What are each made of? - correct
answer ✔✔ A chromosome is the entire string of DNA and a chromatid is the copy of the
chromosome that is preparing to break off--both are made of DNA
What's the difference between haploid and diploid? - correct answer ✔✔ Diploids contain two
sets of chromosomes (46) from each parent while haploids only contain one set of
chromosomes (23)
, What's the easiest way to count chromosomes? - correct answer ✔✔ Count centromeres
What's a purine? - correct answer ✔✔ Nucleotides with two carbon rings: adenine and guanine
What a pyramidine? - correct answer ✔✔ Nucleotides with one carbon ring: cytosine and
thymine.
What are the parts of a nucleotide? - correct answer ✔✔ 1. Five- Carbon Sugar (deoxyribose in
DNA)
2. Nitrogenous Base
3. Phosphate Group
What is it about the DNA molecule that allows it so separate into two strands and not
completely fall apart? - correct answer ✔✔ The nucleotides that pair with each other (A&T,
G&C) form hydrogen bonds that hold together the two strands. The hydrogen bond is strong
enough to hold it together but not so strong that it can't break apart.
What is the main difference between anaphase during mitosis and anaphase in meiosis? -
correct answer ✔✔ In meiosis maternal and paternal homologues are separated by spindle
fibers whereas in mitosis anaphase sister chromatids are separated (they remain attached
throughout meiosis 1)
Differences between prokaryotic DNA and eukaryotic DNA? - correct answer ✔✔ Prokaryotic:
simpler, attached to inner cell membrane with proteins, circular instead of spiral, have only one
chromosome usually
Eukaryotic: rod shaped, found in nucleus with histone and non-histone proteins
answered graded A+
What is the purpose of mitosis? - correct answer ✔✔ To create exact replicas of a cell through
cell division
What is the purpose of meiosis? - correct answer ✔✔ to take the chromosomes in diploid cells
and create haploid cells (sperm and egg cell)
Stages of mitosis - correct answer ✔✔ 1. Prophase
2. Metaphase
3. Anaphase
4. Teleophase
Mitosis stages: picture - correct answer ✔✔
Meiosis stages: picture - correct answer ✔✔
Structure of DNA: picture - correct answer ✔✔
The difference between a chromosome and chromatid? What are each made of? - correct
answer ✔✔ A chromosome is the entire string of DNA and a chromatid is the copy of the
chromosome that is preparing to break off--both are made of DNA
What's the difference between haploid and diploid? - correct answer ✔✔ Diploids contain two
sets of chromosomes (46) from each parent while haploids only contain one set of
chromosomes (23)
, What's the easiest way to count chromosomes? - correct answer ✔✔ Count centromeres
What's a purine? - correct answer ✔✔ Nucleotides with two carbon rings: adenine and guanine
What a pyramidine? - correct answer ✔✔ Nucleotides with one carbon ring: cytosine and
thymine.
What are the parts of a nucleotide? - correct answer ✔✔ 1. Five- Carbon Sugar (deoxyribose in
DNA)
2. Nitrogenous Base
3. Phosphate Group
What is it about the DNA molecule that allows it so separate into two strands and not
completely fall apart? - correct answer ✔✔ The nucleotides that pair with each other (A&T,
G&C) form hydrogen bonds that hold together the two strands. The hydrogen bond is strong
enough to hold it together but not so strong that it can't break apart.
What is the main difference between anaphase during mitosis and anaphase in meiosis? -
correct answer ✔✔ In meiosis maternal and paternal homologues are separated by spindle
fibers whereas in mitosis anaphase sister chromatids are separated (they remain attached
throughout meiosis 1)
Differences between prokaryotic DNA and eukaryotic DNA? - correct answer ✔✔ Prokaryotic:
simpler, attached to inner cell membrane with proteins, circular instead of spiral, have only one
chromosome usually
Eukaryotic: rod shaped, found in nucleus with histone and non-histone proteins
