Fall Semester Exam - Second 9 weeks

Front

What is the expected percentage of white-haired offspring when crossing a palomino horse with a brown horse?

Back

0% - A palomino horse (BW) crossed with a brown horse (BB) cannot produce white-haired offspring.

Front

Which phase of cell division is characterized by chromosomes becoming visible?

Back

Prophase - This is the first stage of mitosis where chromosomes condense and become visible.

Front

In which phase do chromosomes pull away from each other during cell division?

Back

Anaphase - This is the stage where sister chromatids are separated and pulled to opposite poles.

Front

What are the possible blood types of children from a heterozygous type B father (BO) and an O type mother?

Back

Type B and O - The possible genotypes are BO (Type B) and OO (Type O).

Front

What is it called when one allele is not dominant over the other, resulting in both traits being expressed?

Back

Codominance - This occurs when both alleles in a heterozygous individual contribute to the phenotype.

Front

Define Prophase in the context of cell division.

Back

Prophase is the first stage of mitosis where chromatin condenses into visible chromosomes and the nuclear envelope begins to break down.

Front

What is Anaphase in cell division?

Back

Anaphase is the stage in mitosis where sister chromatids are separated and move towards opposite poles of the cell.

Front

What is the definition of Codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygous individual are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

What is the significance of the blood type inheritance from a heterozygous type B parent?

Back

It demonstrates how alleles combine to produce different blood types, specifically Type B and Type O in this case.

Front

What is the role of chromosomes during Prophase?

Back

During Prophase, chromosomes condense and become visible, allowing for proper segregation during cell division.