Science Quiz

1._________ introduced the idea of natural selection
a.Charles Darwin
b.Jansen
c.Antony von Leeuwenhoek
d.Robert Hooke

2.DNA is known as ______
a.chromosomes
b.spindle fibers
c.chromatic fibers
d.chromatin

3.death of every particular members of species is _______
a.Extinction
b.threatened
c.endangered
d.dead

4.A change of DNA results in a new trait is known as ________
a.Mutation
b.chromosomal abnormalities
c.chromosomal disordersc
d.all of the above

5.how does RNA and DNA differ?
a.type of sugar they contain
b.by their bases
c.by their function
d.by strands they contain
e.all of these

6.Which of the following are building blocks of proteins?
a.amino acids
b.polypeptides
c.nucleic acid
d.carbohydrates

7.Which level of protein organization is due to interactions between amino acid side chain groups?
a.primary
b.secondary
c.tertiary
d.all of these

8.What is the generalized structure of a carbohydrate?
a.(CH2O)n
b.(CH4)n
c.(C3H7O)n
d.none

9.When a protein is boiled, it loses all levels of organization besides the primary level. When this happens, the protein is said to be
a.lysed
b.denatured
c.hydrolysed
d.deproteinated

10.Ribose, the sugar found in RNA, contains 5 carbons, and is thus considered as
a.disaccharides
b.pentose
c.ribose
d.hexose