Imagine that the rf between genes a/a and b/b = 32%. imagine also that the dominant wild-type a allele produces broad leaves, while the recessive variant a allele produces narrow leaves. the dominant wild-type b allele produces red berries, while the recessive variant b allele produces white berries. imagine you perform the cross aabb (a and b in trans) x aabbif you produce 100 offspring from this cross, how many offspring will have the genotypes and phenotypes below?
a. broad leaves red berries
b. broad leaves white berries
c. narrow leaves red berries
d. narrow leaves white berries

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.

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.

i dont know it at allnow im just getting points at this pint

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