Given the following nucleotide sequences.
Seq 1
Seq 2
A) Determine the number of mutations between the 2 sequences.
B) Translate each sequence into one letter amino acid code.
C) For each site in the sequence, determine the synonymous and non-synonymous sites.
D) Sum those sites to get a total for total synonymous and non-synonymous sites.
E) Calculate dN and ds for the sequences and provide the dN/dS ratio
where: dN = # of non-synonymous substitutions/ # of non-synonymous sites
dS = # of synonymous substitutions/# of synonymous sites
F) What is your conclusion on what is happening with regards to selection given your calculated ratio at the locus represented by these?

What’s the student’s scientific question

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.