Meiosis / Genetics Quiz

When a TT tall plant is crossed with a tt short plant, there is a 100% probablity that all the offspring will be

• tall

• short

• medium

• cannot be determined

Pairs of chromosomes having genes for the same trait are said to be

• homologous

• homozygous

• analogous

• none of the above

Gametes are produced by the process of

• crossing over

• replication

• meiosis

• mitosis

In Figure 4, what gametes will result if a single crossing over occurs?

• A

• B

• C

• D

Unlike mitosis, meiosis results in the formation of

• 2 genetically identical cells

• 2 genetically different cells

• 4 genetically identical cells

• 4 genetically different cells

Crossing over results in a

• Genetic Recombination

• Daughter cell

• mutation

• clone

Before a cell can either go through mitosis or meiosis, which process must be carried out by the DNA in the nucleus

• Replication

• Transcription

• Translation

• Nondisjunction

A human skin cell contains 46 chromosomes, how many chromosomes are present in a human sperm cell?

• 46

• 92

• 138

• 23

Which process produces the most variation within a species

• Sexual Reproduction

• Asexual Reproduction

• Mitosis

• Cloning

In a genetics laboratory, two heterozygous (Tt) tall plants are crossed. If tall is dominant over short, what are the expected phenotypic results

• 100% Tall

• 50% Tall, 50% Short

• 25% Tall, 75% Short

• 75% Tall, 25% Short