Answer stat
according to the rna world hypothesis, rna acted as the genetic material and catalyzed reactions in ancient cells. what conclusion can you draw from this?
a. this implies that dna and proteins evolved after rna.
b. this implies that dna and proteins aren't essential in cells today.
c. this implies that rna can catalyze any chemical reaction that enzymes catalyze.
d. this implies that if a cell has a problem with its dna, its rna can compensate for the damaged dna.

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12

Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.