Acondition in which the gametes are similar in shape but different in size is isogamy anisogamy oogamy

The correct answer for the fill in the  blank is Anisogamy.

Anisogamy is also termed as heterogamy. It is a form of sexual reproduction in which fusion of two gametes that are different in size and/ or form takes place.

It explains the differences that occur between males and females. Due to the difference in the size of gametes, physiological and behavioral differences take place in two sexes that explains the concept of sexual dimorphism.

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.