REVIEW: Genetics and Cell Reproduction

Which of the following best describes the relationship between DNA and chromosomes?

• Chromosomes are made up of proteins, while DNA is made up of sugars.

• DNA is wrapped around proteins to form chromosomes.

• Chromosomes are found inside DNA strands.

• DNA and chromosomes are completely unrelated.

In sexual reproduction, how many sets of chromosomes does the offspring inherit from the parents?

• One set from each parent

• Two sets from the mother only

• Two sets from the father only

• One set from the mother and two sets from the father

What is the main purpose of mitosis in multicellular organisms?

• To produce gametes

• To repair tissues

• To increase genetic diversity

• To reduce the chromosome number by half

During which process does the chromosome number get halved?

• Mitosis

• Meiosis

• Fertilization

• Binary fission

What is a Punnett Square used for?

• To determine the DNA sequence of an organism

• To predict the outcome of genetic crosses

• To show the stages of mitosis

• To map out chromosomes

In asexual reproduction, the offspring are genetically __________ the parent.

• identical to

• different from

• half similar to

• unrelated to

What does a pedigree chart show?

• The process of cell division

• The physical characteristics of an organism

• The history of traits in a family over several generations

• The genetic makeup of an organism

Which of the following is a characteristic of sexual reproduction?

• It involves only one parent.

• It produces genetically identical offspring.

• It requires two parents and produces genetically diverse offspring.

• It occurs without the fusion of gametes.

How are genes related to DNA?

• Genes are the building blocks of DNA.

• Genes are sequences of DNA that code for proteins.

• DNA is a type of gene.

• Genes and DNA are the same thing.

Which process is primarily involved in the creation of gametes?

• Mitosis

• Meiosis

• Binary fission

• Fertilization