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15 Cards in this Set

  • Front
  • Back
What are genes?
Genes are sequences of DNA that code for traits.
Genes can be translated into what? and when?
Genes can be translated into proteins when they are activated.
Changes in DNA can cause what?
Changes in DNA can cause changes in phenotype.
What is Central Dogma?
Central Dogma is :
What are the differences between RNA and DNA?
RNA is single-stranded, has bases A-U;G-C, and it is in Ribose sugar group.

DNA is double-stranded, has bases A-T;G-C, and it is in deoxyribose sugar group.
RNA splicing...
RNA splicing involves in introns or noncoding regions from primary transcript; coding regions or exon are spliced together. Now, the mature transcript leaves the nucles.
Know how to read mRNA codon.
mRNA codon is complementary to antiocodon on the tRNA and it is corresponding to amino acid.
Function and Stucture of a cell is...
Function and Structure of a cell is determined by the kinds of proteins it makes.
Gene switches...
Control of gene regulation (gene switches) is different in prokaryotes and eukaryotes.
Repressor proteins...
Repressor proteins can block transcripts when they bind to Premotor regions of the DNA.
What is Mutation.
Mutation is a sudden change in an organism's DNA.( can be beneficial, usually harmful, or has no effect.)
What are mutagens?
Mutagens are substances in the environment that can cause mutations.
How many types of mutations are there and what are they?
Tell each kind.
There are 4 types of mutations and they are: deletion, duplication, translocation, and inversion.
Deletion is a loss segment of DNA.
Duplication is a process in which the chromosome breaks and incorporated into its homologous chromsome, giving an extra copy of DNA sequence.
Translocations is a process in which part of chromosome breaks off and attaches to a different non homologous chromsome.
Inversion is a process in which part of chromosome breaks off, turns aroun, and reattaches in the reverse order to the same chromosome.
How many types of gene mutations are there and what are they? Tell each kind.
There are 2 types of gene mutations and they are: frameshitt mutation and point mutation.
Frameshift mutation is the deletion or insertion of nucelotides that disrupts a codon.
Point Mutation is the replacement of a single base pair in a gene.
What is regulatory gene?
Regulatory gene is a gene that regulates an expression.