Which cells experienced tranformation in Griffith's experiment?
a) Live S cells
b) Live R cells
c) Dead S cells
d) Dead S cells and Live R cells
d) Dead S cells and Live R cells
Which enzyme blocked transformation in Avery's experiment?
a) DNAse
b) RNAse
c) Protease
d) Lipase
a) DNAse
Which nucleotide is only found in RNA?
a) A
b) T
c) G
d) U
d) U
These are identical strands of DNA:
a) chromatin
b) Chromatids
c) Centromeres
d) Telomeres
b) Chromatids
These are the ends of chromosomes:
a) Chromatin
b) Chromatids
c) Centromeres
d) Telomeres
d) Telomeres
Describe the base pair off in DNA
Thymine and adenine; Guanine and cytocine
Describe the four phases of mitosis. Include cytokineis
Prophase: chromosomes are not visible (nucleus disappears)
Metaphase: chromosomes duplicate, move to middle
Anaphase: chromosomes ove to the end of the spindles
Telophase: cell begins dividing; nucleus reappears
Cytokinesis: Cytoplasm splits
What is progeria?
A disease where 7 and 9 year olds look in their 70s and 80s because of cell division is irregular
What is crossing over?
a tetrad is formed between two homologous chromosomes. The chromosomes cross over and two of the sister chromatids become recombinant.
Which two phases of mitosis are essentially opposites in terms of changes in the nucleus?
Prophase (nucleus disappears) and Telephase (nucleus reappears)
Who is Johannes Friedrich Miescher?
Johannes Friedrich Miescher discovered the DNA inside salmon sperm
What is applied research?
Applied research is investigations used to help society rather than just for knowledge
Why is Eugenics flawed?
Eugenics is a flawed theory because it made people with certain genetic conditions unable to have children. Favored a specific type of human over another. Something the US practiced and what happened in the holocaust.
Where is vitro fertilization performed?
In vitro fertilization is performed in a lab
What are stem cells used for?
Stem calls are useful because it produces insulin for diabetic, it can also regenerate and repair damage tissue
What is a halotype?
Halotypes are clusters of neighboring SNPs that can be used as markers to identify traits