Describe the type of chromosomal alterations implicated in the following human disorders: down syndrome, klinefelter syndrome, extra y

What is formed as a result of mitosis? A) four genetically different cells B) four genetically identical cells C) two genetically different cells D) two genetically identical cells

Where do the two chromosomes that make up a homologous pair come from?

Which trait is most likely to be acted on by natural selection? A. the knowledge that a person learns in school B the tricks a dog knows how to perform C the length of bird's beak D the size of a weightlifter's arm muscles

Explain why cholesterol accumulates in the blood of individuals

Where are you most likely to find primary succession

Compare and contrast members of order squamata with members of order sphenodonta

What two factor will make a star bright?

What are the standard units of specific gravity? a) g/cm^3 b) kg/L c) kg/cm^3 d) none

Explain why the number of tuskless elephant in Uganda may be increasing.

A person who has a disorder caused by a recessive allele is a. considered a carrier of the disorder. b. homozygous for the recessive allele. c. unable to pass the allele to offspring. d. certain to have offspring with the disorder.