Genetics Exam with Multiple Choice answers graded A+

Genetics Exam with Multiple Choice
answers graded A+
Study of the genetic change in one species over time would fall under which branch of genetics:

a) Transmission genetics

b) Molecular genetics

c) Population genetics

d) Ecological genetics - ANS✅✅c) Population genetics



The theory of living organisms called preformation was replaced by:

a) pangenesis

b) cell theory

c) germ plasm theory

d) b and c - ANS✅✅d) b and c



Model organisms used in genetic research:

a) are vertebrates

b) reproduce quickly

c) are easily maintained in a lab

d) b and c - ANS✅✅d) b and c



Eukaryotes are different than prokaryotes because they have:

a) a nucleus

b) ribosomes

c) a plasma membrane

d) a and c - ANS✅✅d) a and c



Deoxyribose sugars have a hydroxyl group attached to which carbon:

a) 1'

b) 2'

, c) 3'

d) both 2' and 3' - ANS✅✅c) 3'



Prokaryotes condense their DNA by using:

a) loops

b) loops, supercoiling

c) loops, supercoiling, scaffolding proteins

d) loops, supercoiling, scaffolding proteins, histones - ANS✅✅c) loops, supercoiling, scaffolding
proteins



DNA that is positively supercoiled is:

a) overwound

b) underwound

c) is the state of DNA in most cells

d) b and c - ANS✅✅a) overwound



Chromatin consists of:

a) DNA

b) DNA + protein

c) protein + RNA

d) DNA + RNA + protein - ANS✅✅b) DNA + protein



Different forms of the same gene are referred to as:

a) chromosomes

b) miRNAs

c) mutations

d) alleles - ANS✅✅d) alleles



DNA pol III synthesizes a polymer of DNA by:

a) forming a phosphodiester bond between a 3'-OH and a phosphate group

b) forming a phosphodiester bond between a 5'-carbon and a phosphate group