creating phylogenic trees form DNA sequences Exam Questions and Answers Already Passed
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Creating phylogenic trees form DNA sequences
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Creating Phylogenic Trees Form DNA Sequences
creating phylogenic trees form DNA sequences Exam Questions and Answers Already Passed
how do scientists draw relationships between organisms - Answers on shared features and compare DNA and RNA between organisms
how are DNA sequences used to deduce evolutionary relationships - Answers they look...
creating phylogenic trees form DNA sequences Exam Questions and Answers Already Passed
how do scientists draw relationships between organisms - Answers on shared features and compare
DNA and RNA between organisms
how are DNA sequences used to deduce evolutionary relationships - Answers they look at similarities
and differences
what is one advantage of building phylogenic trees using DNA comparisons rather than anatomical
features - Answers more adjective and not as unclear
how has biotechnology affected the process of building phylogenic trees from DNA sequences - Answers
it allows you to be able to see everything
what do evolutionary related organisms share - Answers common ancestor with an ancestral DNA
sequence
what are two common types of mutations - Answers SNP's and Indel's
what is SNP - Answers a change of one of the DNA base pairs into another DNA base pair
what is an indel - Answers inserts another DNA base pair
explain the difference between distantly related and closely related organisms in terms of their DNA
sequences - Answers distantly related species have more time for mutations to get their DNA while
closely related species had little time so their DNA is similar
what does it mean to compare "apples to apples" when referring to DNA sequences from different
organisms - Answers they need to make sure they are evolutionary related. The two sequences need to
be aligned are next to each other and compared
explain aligning DNA sequences - Answers they add gaps to the sequence to make it align because they
want to maximize the number of matches
how is SNP identified in an alignment - Answers when the letters in a column don't match
how is an indel identified in an alignment - Answers when there is a gap in the sequence or a dash
how can you identify the two sequences that are most similar - Answers by the distance (# of changes)
or length or each pair
what is the link between the length of the lie and time - Answers the longer the line the more time has
gone by
what is a branch point (also called a node) on a phylogenic tree and describe what it represents -
Answers a branch point is where two branches split apart and it represents the most resent common
ancestor of all the species on those branch
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