BIO 207 Exam 1 Questions with Correct Answers Latest 2025-2026
One difference between cancer cells and normal cells is that cancer cells... - Answers continue
to divide even when they are tightly packed together
Mitosis... - Answers leads to identical copies of the original cell
A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell
in question is most likely in - Answers G1
Consider a cell in Metaphase II with 20 chromatids. What was its diploid number of
chromosomes? - Answers 20
During what stage does a cell goes from diploid to haploid? - Answers Meiosis I
A human cell containing 22 autosomes and a Y chromosome is... - Answers a sperm
Meiosis normally leads to... - Answers four haploid daughter cells each genetically unique
In which stage is the nuclear envelope usually not present? - Answers metaphase
Consider a test cross with a Bb individual for a normal dominant/recessive - Answers the
offspring will show a 1:1 phenotypic ratio dominant: recessive
Consider a cross between 2 heterozygous individuals for two traits found on two separate
chromosomes with normal dominant/recessive traits - Answers the offspring will show a 9:3:3:1
phenotypic ratio
When a trait is on one of the two homologous pairs and not on the other the cell is said to be -
Answers heterozygous
Blood types in humans is an example of - Answers codominance
For a blood homozygous for type "A" you would note it best by - Answers I^AI^A
How many unique gametes could be produced through independent assortment by an individual
with genotype AabbCCDdEE? - Answers 7
Which of the following occurs in meiosis but not in mitosis? - Answers synapsis of
chromosomes
Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t).
What fraction of the progeny of a cross of BbTt x BBtt would be expected to have brown fur and
long tails? - Answers 0
In a cross of PpYyRr x Ppyyrr, what is the probability of getting ppyyRr? - Answers 1/16
In cattle, roan coat color occurs in the heterozygous (Rr) offspring of red (RR) and white (rr)
One difference between cancer cells and normal cells is that cancer cells... - Answers continue
to divide even when they are tightly packed together
Mitosis... - Answers leads to identical copies of the original cell
A particular cell has half as much DNA as some other cells in a mitotically active tissue. The cell
in question is most likely in - Answers G1
Consider a cell in Metaphase II with 20 chromatids. What was its diploid number of
chromosomes? - Answers 20
During what stage does a cell goes from diploid to haploid? - Answers Meiosis I
A human cell containing 22 autosomes and a Y chromosome is... - Answers a sperm
Meiosis normally leads to... - Answers four haploid daughter cells each genetically unique
In which stage is the nuclear envelope usually not present? - Answers metaphase
Consider a test cross with a Bb individual for a normal dominant/recessive - Answers the
offspring will show a 1:1 phenotypic ratio dominant: recessive
Consider a cross between 2 heterozygous individuals for two traits found on two separate
chromosomes with normal dominant/recessive traits - Answers the offspring will show a 9:3:3:1
phenotypic ratio
When a trait is on one of the two homologous pairs and not on the other the cell is said to be -
Answers heterozygous
Blood types in humans is an example of - Answers codominance
For a blood homozygous for type "A" you would note it best by - Answers I^AI^A
How many unique gametes could be produced through independent assortment by an individual
with genotype AabbCCDdEE? - Answers 7
Which of the following occurs in meiosis but not in mitosis? - Answers synapsis of
chromosomes
Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant to long tails (t).
What fraction of the progeny of a cross of BbTt x BBtt would be expected to have brown fur and
long tails? - Answers 0
In a cross of PpYyRr x Ppyyrr, what is the probability of getting ppyyRr? - Answers 1/16
In cattle, roan coat color occurs in the heterozygous (Rr) offspring of red (RR) and white (rr)
