Biology Finals--Semester 2
Terms in this set (36)
What is the name of the structure as named by Watson and Crick?
The backbone of a DNA molecule is made up of what 2 components?
What are 3 parts of a nucleotide found in DNA?( Include all possible bases)
-Nitrogen Base (A,G,T,C)
Arrange these words from largest to smallest in size. (Chromosome, Nucleus, Cell, DNA, Nucleotide)
During DNA replication a DNA strand that has the bases CTAGGT produces a strand with what bases?
What type of DNA strands are found in the DNA molecules after replication?
What sugar is found in RNA?
What types of RNA is involved in protein synthesis?
What happens during the process of translation?
It decodes the mRNA message
Compare DNA and RNA
-Uracil in RNA
-RNA is single stranded
What is produced during transcription?
A DNA segment is changed from--AATTAG--to--AAATAG--What type of mutation is this an example of?
Substitution or Point Mutation
A DNA segment is changed from--ATTAGAAA--to--ATAGAAA--What type of mutation is this an example of?
Deletion or Frameshift Mutation
What is the codon that specifies for the amino acid Methionine? (The start codon)
What 2 codons specify for the amino acid Cysteine?
How many codons are there and why are there only 20 amino acids then?
-Because the amino acids repeat
How can you determine an organisms phenotype?
By looking at it
What are the sex chromosomes of a normal female?male?
What type of inheritance controls roan cows? What do they look like?
How many total chromosomes are there?
46 (23 pairs)
Which set of chromosomes are the sex chromosomes?
What is the name of a genetic disorder we have discussed that can be diagnosed by a karyotype?
Kleinfelters, Down Syndrome, Turners Disease
What is the goal of Human Genome Project?
To determine the sequence of DNA
What is the purpose of gene therapy?
Change DNA in people to cure genetic disorders
Why was Dolly considered a clone?
Because they took the cells from other lambs to create Dolly
On the Origin of Species
In 1859, Darwin published his revolutionary ideas in a work called....
What was the major concept in Lamrack's Theory of Evolution by aquired characteristics?
Use or disuse
According to Darwin's theory of evolution by natural selection, what organisms tend to survive?
Ones best fitted for their enviroments
Every birds unique beak represents a different ______ that enables it to survive in its enviroment.
What is the term for the formationn of a new species?
What type of isolation led to the development of new species of finches on the Galapagos Islands?
Which pattern of natural selection would lead to a population of birds with members that specialize in different types of food?
In genetic drift, what cause allele frequencies to change?
When is a theory useful?
Only when it can be tested
How do insects become immune to insecticides?
What cause antibiotic resistance in bacteria?
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