BIOL 121 Midterm 1 Questions With Complete Solutions
Alleles: Correct Answers alternate versions of the same gene
Anaphase: Correct Answers Sister chromatids separate.
Chromosomes are pulled to opposite poles of the cell. 4n=4.
Replicated chromosomes separate into two identical sets of
unperfected chromosomes. By the end each ell has an equivalent
and complete collection of chromosomes that are identical to the
parent cell prior to chromosome replication.
Are un-replicated and replicated chromosomes considered single
chromosomes? Correct Answers Yes. They have one
centromere so they are therefore one single chromosome.
Assuming all the paternal grandparents (i.e., parents of the
"Male parents") had the genotype AA, and all the maternal
grandparents (i.e., the parents of the "Female parents") had the
genotype aa, what would be the genotype of individuals in the
F1 generation? Correct Answers Aa
Assuming that the Male parents all have the genotype AA, and
the Female parents all have the genotype aa, what would be the
genotype of individuals in the F1 generation? Correct Answers
Aa
Can more than one gene influence traits? Correct Answers Yes.
One gene might influence another gene which influences the
trait in question.
, Centromere Correct Answers Specialized region of the
chromosome where two chromatids are joined together. This
location contains special proteins.
Chromatid Correct Answers Each of the DNA copies in a
replicated chromosome.
Co-dominance Correct Answers Individuals have/show the
phenotype of both traits
Condensed replicated chromosome Correct Answers DNA
condensed around its associated proteins, resulting in a compact
chromosome.
Crossing over results in: Correct Answers genetic
recombination.
Cytokinesis Correct Answers Results in two daughter cells that
contain exactly the same information as the parent cell. Each
cell has its own organelles and nucleus.
Difference between mitosis and meiosis: meiosis Correct
Answers - two cell divisions
- each daughter cell has half the number of chromosomes as the
parent cell
- homologues pair durring prophase 1 and cross over
- lining up independent
Difference between mitosis and meiosis: mitosis Correct
Answers - 1 cell division
- parent and daughter cells are identical
Alleles: Correct Answers alternate versions of the same gene
Anaphase: Correct Answers Sister chromatids separate.
Chromosomes are pulled to opposite poles of the cell. 4n=4.
Replicated chromosomes separate into two identical sets of
unperfected chromosomes. By the end each ell has an equivalent
and complete collection of chromosomes that are identical to the
parent cell prior to chromosome replication.
Are un-replicated and replicated chromosomes considered single
chromosomes? Correct Answers Yes. They have one
centromere so they are therefore one single chromosome.
Assuming all the paternal grandparents (i.e., parents of the
"Male parents") had the genotype AA, and all the maternal
grandparents (i.e., the parents of the "Female parents") had the
genotype aa, what would be the genotype of individuals in the
F1 generation? Correct Answers Aa
Assuming that the Male parents all have the genotype AA, and
the Female parents all have the genotype aa, what would be the
genotype of individuals in the F1 generation? Correct Answers
Aa
Can more than one gene influence traits? Correct Answers Yes.
One gene might influence another gene which influences the
trait in question.
, Centromere Correct Answers Specialized region of the
chromosome where two chromatids are joined together. This
location contains special proteins.
Chromatid Correct Answers Each of the DNA copies in a
replicated chromosome.
Co-dominance Correct Answers Individuals have/show the
phenotype of both traits
Condensed replicated chromosome Correct Answers DNA
condensed around its associated proteins, resulting in a compact
chromosome.
Crossing over results in: Correct Answers genetic
recombination.
Cytokinesis Correct Answers Results in two daughter cells that
contain exactly the same information as the parent cell. Each
cell has its own organelles and nucleus.
Difference between mitosis and meiosis: meiosis Correct
Answers - two cell divisions
- each daughter cell has half the number of chromosomes as the
parent cell
- homologues pair durring prophase 1 and cross over
- lining up independent
Difference between mitosis and meiosis: mitosis Correct
Answers - 1 cell division
- parent and daughter cells are identical
