This is the normal nucleotide sequence on a dna strand: a—c—t—g—g—a—t what is a deletion?
a) a c t g c g a t
b) a c t g a t
c) a g t g g a t
d) a c u g g a u

Environmental impacts on evolution : mastery test

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.