Two fruit flies produce a generation of 103 offspring, of which 103 had recessive ebony bodies (bb) and 0 had brown bodies (bb or bb). what can you conclude about the parents of this generation? one parent was heterozygous for body color and the other was homozygous with a brown body. one parent had an ebony body and the other was heterozygous for body color. both parents were heterozygous for body color. both parents were homozygous with ebony bodie

The last option, Both parents were homozygous with ebony bodie, is the correct one.

Explanation:

We see all the offspring are bb.

In this case both parents, should also be "bb" so they would be homozygous ebony because that's a recessive trait.

An example: In Bb, b is the recessive trait. Here there's a big B and a small b, then the recessive trait (small b) will be not be seen but the dominant (Big B) will.

So in order for all the offspring to be ebony (bb) which is the recessive trait, none of them can have atleast one B ( BB or Bb), then both the parents  have to be homozygous for the recessive trait. That means bb.

So the last option, Both parents were homozygous with ebony bodie, is the correct one.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.