Bio Exam Flashcards
The two strands of a DNA molecule run in opposite directions, so they are said to be
antiparallel
Which of the following generally results in a gain in genetic variability
mutation
Which one is NOT true about theory?
is broader in scope than a hypothesis
What are the two types of gene therapy?
ex vivo and in vivo
During the PCR reaction, the DNA sample is heated in order to
separate it into single strands
Wings of birds vs wings of insects is an example homology
False
Arrange the following from the least general (or most specific) to the most general (least specific).
species, genus, family, order, class, phylum, kingdom, domain
Gel electrophoresis separates DNA fragments according to
their length
Who is the first one to propose fixed species?
Aristotle
Unwinds and unzips DNA
DNA helicase
In contrast to DNA, RNA
contains uracil
Which are the two proposals in Darwin’s book?
Existing species descended from ancestral species, Natural selection is the mechanism of evolution
Seals breaks in the sugar-phosphate backbone
DNA ligase
What are SNPs
SNPs are the difference of one nucleotide in a gene sequence between individuals
Who was the first one to propose “life evolves”?
Lamarck
Which of the following is NOT a function of RNA polymerase?
proofreading
Addition of new complementary DNA nucleotides to the daughter strand
DNA polymerase
In DNA, the amount of
A=T and G=C
Artificial selection takes a relatively long time to occur while natural selection takes a relatively short time to occur.
False
Carries amino acids to ribosomes
transfer RNA
During DNA replication, the parental strand ATTGGC would code for the daughter strand
TAACCG
Is a structural component of the organelle responsible for protein synthesis
ribosomal RNA
Which one is NOT an example of biotechnology products?
Tylenol
Which one is an application of DNA fingerprinting?
Criminology
What is the first genetically engineered pharmaceutical product produced?
Humulin (human insulin)
