Exploring Errors in Meiosis

What is the result of a diploid cell undergoing meiosis?

• Two haploid cells

• Four haploid cells

• Four diploid cells

• Two diploid cells

What does nondisjunction refer to?

• Normal chromosome separation

• An error in chromosome separation

• Duplication of genetic material

• Reduction of genetic material

What happens if nondisjunction occurs in meiosis I?

• One gamete has an extra chromosome

• All gametes lack a chromosome

• Two gametes have an extra chromosome

• All gametes are normal

Which of the following is a potential outcome of nondisjunction?

• Gametes with duplicated genetic material

• All gametes with reduced genetic material

• Gametes with unchanged genetic material

• Gametes with either extra or missing chromosomes

What are the possible outcomes of nondisjunction in meiosis II?

• Two normal and two abnormal gametes

• Four abnormal gametes

• Four normal gametes

• Three normal and one abnormal gamete

What is trisomy?

• A missing chromosome in a zygote

• A zygote with an extra set of chromosomes

• A zygote with one set of chromosomes

• A zygote with three copies of one chromosome

Which condition can result from the fusion of a gamete with n+1 chromosomes and a normal gamete?

• Monosomy

• Polyploidy

• Trisomy

• Diploidy

Which syndrome is associated with having just one X chromosome in females?

• Turner syndrome

• Patau syndrome

• Down syndrome

• Klinefelter syndrome

What is the outcome when a diploid gamete fuses with a haploid gamete?

• A trisomic zygote

• A monosomic zygote

• A diploid zygote

• A triploid zygote

What are polyploid conditions?

• Having extra complete sets of chromosomes

• Having an extra chromosome in the set

• Having incomplete sets of chromosomes

• Missing one chromosome in the set