Chromosome Structure and Meiosis Quiz

The structures at the bottom of the diagram called:

• Centromeres

• Sister Chromatids

• Homologous Chromosomes

• Chromatin

Which of the following statements about homologous chromosomes is true?

• Both chromosomes are identical to each other because they are a pair.

• Both chromosomes have completely different genes in different places.

• Chromosomes are similar, but have different alleles (variations) and DNA.

• Chromosomes are completely the same, even though they have different DNA.

Which of the following cells undergo meiosis?

• Sperm cells

• Liver cells

• Unicellular organisms

• Somatic cells

The parent cell has a diploid number of 46 chromosomes. After it undergoes meiosis I and meiosis II, how many chromosomes are in each haploid daughter cell?

• 4

• 23

• 46

• 22

Why is crossing over an important source of genetic variation during meiosis?

• It allows mutations to be caught and destroyed

• It ensures that all resulting daughter cells are genetically unique

• It ensures that all daughter cells are identical

• It is the result of telophase II

Which of the following statements is true about the chromosomes in gamete cells?

• They have homologous chromosomes (one from mom, one from dad).

• They have double the amount of chromosomes as body cells.

• They have two complete sets of chromosomes.

• They have one set of chromosomes (half the total number)

Structure (b) is a ____.

• chromosome
• chromatid
• centromere

Structure C is pointing to one ____. 

• chromatid
• chromosome
• centromere
• DNA

How many chromosomes total does a human have?

• 23
• 5
• 46
• 7

Homologous chromosomes

• a

• d