LSU BIO 1201 TEST BANK 2026 ALL LECTURES
QUESTIONS AND ANSWERS GRADED A+
◉ How many centromeres are there per chromosome? Answer:1
◉ How many centrosomes per chromosome consist of 2 sister
chromatids? Answer:1
◉ When is DNA replicated? Answer:S phase
◉ When are sister chromatids separated? Answer:Anaphase I
◉ If the DNA content in G2 is X, what is the DNA content of each
daughter cell at Telophase? Answer:0.5X
◉ If the DNA content in G1 is X, what is the DNA content of each of
the daughter cells at Telophase? Answer:X
◉ DNA replication checkpoint occurs where? Answer:G2
,◉ We inherit our mitochondria from our... Answer:our mother
◉ In mitosis when do homologous chromosome pairs separate?
Answer:in mitosis, homologous chromosomes do not separate
◉ In meiosis when do homologous chromosome pairs separate?
Answer:Anaphase I
◉ At G2, the amount of DNA is X. At Telophase II the amount of DNA
in each of the daughter cells is... Answer:0.25X
◉ At G1, the amount of DNA is X. At Telophase II the amount of DNA
in each of the daughter cells is... Answer:0.5X
◉ At G2 there are 40 chromatids, what is the diploid chromosome
number? Answer:20
◉ At G2 there are 40 chromatids, at Telophase II each daughter cells has
how many chromosomes? Answer:10
◉ At G2, there are 40 centrosomes, at Telophase II each daughter cell
has how many chromosomes? Answer:20
, ◉ Why don't we talk about Gossian genetics? Answer:he was not
quantitative with his work
◉ What is the alternative form of a gene? Answer:allele
◉ How many different alleles can a diploid individual have at a single
gene locus if there are 4 alleles in the population? Answer:2 alleles
◉ True or False: Recessive alleles are not expressed because they code
for an inactive or defective enzyme. Answer:true
◉ What is an example of a genotype? Answer:PP, Pp, or pp
◉ In genetics, what determines what? Answer:genotype determines
phenotype
◉ An individual with 2 Barr Bodies has how many chromosomes?
Answer:3: 2 are inactive, 1 is active
◉ X chromosome inactivation happens how? Answer:random and all
but one
QUESTIONS AND ANSWERS GRADED A+
◉ How many centromeres are there per chromosome? Answer:1
◉ How many centrosomes per chromosome consist of 2 sister
chromatids? Answer:1
◉ When is DNA replicated? Answer:S phase
◉ When are sister chromatids separated? Answer:Anaphase I
◉ If the DNA content in G2 is X, what is the DNA content of each
daughter cell at Telophase? Answer:0.5X
◉ If the DNA content in G1 is X, what is the DNA content of each of
the daughter cells at Telophase? Answer:X
◉ DNA replication checkpoint occurs where? Answer:G2
,◉ We inherit our mitochondria from our... Answer:our mother
◉ In mitosis when do homologous chromosome pairs separate?
Answer:in mitosis, homologous chromosomes do not separate
◉ In meiosis when do homologous chromosome pairs separate?
Answer:Anaphase I
◉ At G2, the amount of DNA is X. At Telophase II the amount of DNA
in each of the daughter cells is... Answer:0.25X
◉ At G1, the amount of DNA is X. At Telophase II the amount of DNA
in each of the daughter cells is... Answer:0.5X
◉ At G2 there are 40 chromatids, what is the diploid chromosome
number? Answer:20
◉ At G2 there are 40 chromatids, at Telophase II each daughter cells has
how many chromosomes? Answer:10
◉ At G2, there are 40 centrosomes, at Telophase II each daughter cell
has how many chromosomes? Answer:20
, ◉ Why don't we talk about Gossian genetics? Answer:he was not
quantitative with his work
◉ What is the alternative form of a gene? Answer:allele
◉ How many different alleles can a diploid individual have at a single
gene locus if there are 4 alleles in the population? Answer:2 alleles
◉ True or False: Recessive alleles are not expressed because they code
for an inactive or defective enzyme. Answer:true
◉ What is an example of a genotype? Answer:PP, Pp, or pp
◉ In genetics, what determines what? Answer:genotype determines
phenotype
◉ An individual with 2 Barr Bodies has how many chromosomes?
Answer:3: 2 are inactive, 1 is active
◉ X chromosome inactivation happens how? Answer:random and all
but one
