Question | Answer |
Isolated a phosphorus- rich substance called nuclein from puss soaked bandages salved from a German hospital? | Friedrich Miescher |
Researched on the fruit fly; uncovered the basis of genetic linkage. | Thomas Hunt Morgan |
Uncovered the basic rules of inheritance using the pea plant; found that inheritance is particulate with each trait being based on two factors with one or the other factor being passed on intact from parent to offspring. | Gregor Mendel |
19th century researcher studied the roundworm (Ascaris) and found that germ line cells have half the number of chromosomes than somatic line cells | Theodore Boveri |
Clipped the tails off of mice generation after generation to test the idea of inheritance of acquired characters | August Weismann |
19th century researcher; came up with the first viable mechanism by which evolutionary change may occur; based on the differential survival and reproduction of different variants in the population | Charles Darwin |
Expert in X-ray crystallography data and adopted a model buiding approach to finally decipher the structure of the DNA molecule | James Watson |
18th and early 19th century researcher; hypothesized that evolution worked through a model of inheritance of acquired characteristics | Jean- Baptiste Lamarck |
The process of copying messenger RNA from a DNA template | Transcription |
The process of producing polypeptide sequences from a messenger RNA sequence. | Translation |
Exchange between two homologous chromosomes resulting in new combinations of alleles across different loci | Recombination |
Type of bond occuring between complimentary bases holds the two strands of the double stranded DNA molecule together | Hydrogen Bonds |
the enzyme that unwinds doule stranded DNA at the replication fork | Helicase |
The Messelson- Stahl experiment demonstrated the DNA replication is... | Semiconservative |
Chromosomes consist of chromatin, a material made of... | DNA and proteins |
In eukaryotic organisms, genes are transcribed int RNA molecules that in turn undergo processing that removes certain segments called... | Introns |
The inheritance of cytosine bases that have been methylated in a parent is an example of... | Epigenetics |
Genes can be regulated by... | splicing out different bits of RNA, turning transcription on or off, making mRNA molecules more or less stable, controlling the timing of translation |
The proportion of the phenotypic variation thast is due to genetic variation | Heritability |
Genes thgat are widely expressed across many differnt types of cells because they encode for proteins vital to the basic function of all cells | Housekeeping Genes |
DNA may be transcribed into... | tRNA, mRNA, or rRNA |