Biology Questions
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A mutation arises in a DNA sequence that alters the codon from GCU to GCA. The amino acid that is coded for from both of these is Alanine. What property of the genetic code does this represent
Parrots are found on two islands that are only 5km apart. Despite this short distance, only about one individual every generation migrates across the channel and reproduces on the other island. The low rate of gene flow will lead to complete population differentiation over time
A deleterious mutation (allele m) in amoebas more easily disrupts their cell membranes at higher temperatures. Population A has a higher mutation rate for that gene than population B. If selection acts similarly in both populations, what would you expect the relative frequencies to be of the mutant allele m in these two populations
A series of different fossil ferns are found in different rock layers. Applying the Principle of Faunal Succession, which of the following would be the best hypothesis based on these finding? (1,2,3 top to bottom)
Only mutations in the germline are heritable
Fossils of an ancient vertebrate, Tiktaaklik, show that it had intermediate characteristics of the wrist and digit bones supporting the transition to terrestrial vertebrates. This species is no longer found anywhere on Earth. Given this evident, alone, which hypothesis can be rejected
A short haired, brown female mouse (S_B_) has a litter of pups with a long haired, while male mouse (ssbb). Which of Mendel's Laws of Inheritance explains why some pups have combinations of color and hair length that are not found din the parents.
Presented a mechanism for how species can change, and lead to new species, through the inheritance of acquired traits
does gene flow increase or decrease fitness?
what is it called when a trait has only one allele
Does gene flow increase or decrease genetic variation between populations
What is the only source of new alleles?
What two key ingredients does natural selection depend upon?
The hard and soft palates are formed by the union of the primary and secondary ?
Growth calcification and ? Are the three primary periods in tooth formation?
Name the process for the laying down or adding of bone
The hardest surface in the human body
Which branchial arch forms the side and front of the neck
what part of mammalian development give rise to pluripotent cells?
Which type if oral mucosa forma the inside of the cheeks, lips, and soft palate.