Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight. this occurs because their cells are impaired in what way? a) they cannot replicate dna. b) they cannot undergo mitosis. c) they cannot exchange dna with other cells. d) they cannot repair thymine dimers. e) they do not recombine homologous chromosomes during meio

Which of the following is not a potential result of deforestation?

Aparent with freckles is crossed with a parent without freckles. the punnett square shows the possible genotypes and phenotypes of the offspring. which statement accurately describes the probability of phenotypes? a. the offspring are more likely to have freckles. b. the offspring are more likely to have no freckles. c. the likelihood of the offspring having freckles and not having freckles is the same. d. the likelihood of the offspring having freckles and not having freckles cannot be determined.

Accuracy in the translation of mrna into the sequence of amino acids in a polypeptide depends on specificity in which of the following? 1) binding of ribosomes to mrna 2) shape of the a and p sites of ribosomes 3) attachment of amino acids to trnas 4) bonding of the anticodon the codon and the attachment of amino acids to trnas