If a plant with round seeds has a parent that has wrinkled seeds, then, what is its genotype? (Assume that round is dominant.)  

A point mutation that changes a codon specifying an amino acid into a stop codon is called a ______________ mutation.

Down’s syndrome is caused by_________________ and the risk of conceiving an offspring with Down’s syndrome rises dramatically with the age of the ___________.

Huntington’s disease is caused by a dominant allele. If one of your parents has the disease, then the probability that you, too, will have the disease is ___________%.

Nondisjunction is uneven distribution of chromosomes in meiosis. It causes aneuploidy and most aneuploidies cease developing as embryos.

Cri-du-chat syndrome is associated with a missing chromosome number 5.

Every person has two copies of each gene, one inherited from each parent.

Give at least three differences between prokaryotic and eukaryotic cells. Also give  twoexamples of each type.

 An individual with the chromosomal description 45, X would be a _____.     

Mutations that cause loss of a chromosome would be termed: