Biol 207 Midterm 1 || Zero Flaw on Answers.
Which stage does DNA replication occur? correct answers S phase
What are the 3 cohesin proteins? correct answers Smc3, Smc1, Scc1
What do protected cohesins hold together? correct answers sister chromatids
When are cohesin rings broken? correct answers before anaphase
how many chromosomes are in an embryo to adult stage? correct answers 2n=46
how much DNA is in a 2n organism at G1, S, G2, M? correct answers 2c, 4c, 4c, 2c
what do unprotected cohesins hold together? correct answers homologous chromosomes
Do protected or unportected cohesins get broken during anaphase 1? correct answers unprotected
anaphase 2 breaks which cohesins? correct answers protected
spermatogenesis and oogenesis are what type of process? correct answers gametogenesis
Oogenesis: what are the end products? correct answers one large haploid cell and polar bodies
Process of oogenesis? correct answers 1) meiosis in fetus
2) pause in prophase 1
3) puberty - once a month cells resume meiosis, enter oviduct, can be fertilized
, dizygotic twins occur how? correct answers fraternal twins - 2 zygotes, 2 blastocysts
two ways monozygotic twins occur? (least common) correct answers 1 zygote splits at the two
cell stage, 2 blastocysts OR 1 blastocyst splits into two -- same membrane for pregnancy
Corn produces ... correct answers pollen and eggs
yeast produces... correct answers a/alpha cells that produce a and alpha cells through meiosis
cell fusion correct answers haploid yeast cells do this to make diploid cells (a/alpha cells)
what process makes one multicellular organism or many unicellular organisms correct answers
mitosis
can alpha fuse with alpha cells correct answers no. alpha can only fuse with a
meisosis of a/alpha cell produces... correct answers two a and two alpha cells
yeast uses what mechanism during mitosis correct answers budding
nucleic acid rules? (5) correct answers 1) made using triphosphate nucleotides
2) made 5' to 3'
3) made using ssDNA template
4) pair antiparallel
5) pair with complimentary base pairing
prokaryotic DNA and organelle DNA is ... correct answers circular
Which stage does DNA replication occur? correct answers S phase
What are the 3 cohesin proteins? correct answers Smc3, Smc1, Scc1
What do protected cohesins hold together? correct answers sister chromatids
When are cohesin rings broken? correct answers before anaphase
how many chromosomes are in an embryo to adult stage? correct answers 2n=46
how much DNA is in a 2n organism at G1, S, G2, M? correct answers 2c, 4c, 4c, 2c
what do unprotected cohesins hold together? correct answers homologous chromosomes
Do protected or unportected cohesins get broken during anaphase 1? correct answers unprotected
anaphase 2 breaks which cohesins? correct answers protected
spermatogenesis and oogenesis are what type of process? correct answers gametogenesis
Oogenesis: what are the end products? correct answers one large haploid cell and polar bodies
Process of oogenesis? correct answers 1) meiosis in fetus
2) pause in prophase 1
3) puberty - once a month cells resume meiosis, enter oviduct, can be fertilized
, dizygotic twins occur how? correct answers fraternal twins - 2 zygotes, 2 blastocysts
two ways monozygotic twins occur? (least common) correct answers 1 zygote splits at the two
cell stage, 2 blastocysts OR 1 blastocyst splits into two -- same membrane for pregnancy
Corn produces ... correct answers pollen and eggs
yeast produces... correct answers a/alpha cells that produce a and alpha cells through meiosis
cell fusion correct answers haploid yeast cells do this to make diploid cells (a/alpha cells)
what process makes one multicellular organism or many unicellular organisms correct answers
mitosis
can alpha fuse with alpha cells correct answers no. alpha can only fuse with a
meisosis of a/alpha cell produces... correct answers two a and two alpha cells
yeast uses what mechanism during mitosis correct answers budding
nucleic acid rules? (5) correct answers 1) made using triphosphate nucleotides
2) made 5' to 3'
3) made using ssDNA template
4) pair antiparallel
5) pair with complimentary base pairing
prokaryotic DNA and organelle DNA is ... correct answers circular
