Nature of Science/Other
Can anything be proven in science
no
List the steps of Interphase in order.
G1, S, G2
Following mitosis, each daughter cell will have _____ n number and ploidy as the parent cell.
Same
What kind of bonds is the backbone of DNA made of?
Covalent
DNA replication is...
semiconservative
Examples of a theory, name 3
Cell theory, gravitational theory, evolutionary theory
The main function of Rb proteins?
Paclitaxel is a drug that disrupts chromosome attachment to microtubules during the cell cycle. What phase does this act?
Mitotic Phase
Water molecules are able to engage in hydrogen bonding because they have...
partial positives and partial negatives
Fluorouracil is a drug that pairs with adenine, preventing another nucleotide from being added. What phase is affected?
S phase
What are two key characteristics of a hypothesis?
Testable and falsifiable
A cell should be arrested at G1 checkpoint until...
It ensures DNA is undamaged and that the cell is the proper size and has enough resources
What phase of mitosis does the nuclear envelope get completely broken down?
prometaphase
What is the name of the covalent bonds in the backbone?
phosphodiester
Where are Okazaki fragments?
Lagging strand
Which mitotic phase is characterized by the separation of sister chromatids?
Anaphase
What phase of the cell cycle are neurons in?
G0
What are spindle fibers made of?
tubulin
What are the shapes of eukaryotic DNA and prokaryotic DNA?
Linear and circular
Why would DNA need to initiate mismatch repair?
Bases aren't complementary
A new cancer drug comes out and it makes it to where cohesin can't break down. What would 2 daughter cells appear like?
Not proportional in their DNA content
In the G2 phase a cell has 100 nanograms of DNA. How many nanograms of DNA will be in the produced daughter cells?
50
Where do spindle fibers attach to the chromosome?
Kinetochore
What is the complementary strand to 5'-AATAGCTGCAT-3'
5'-ATGCAGCTATT-3'
If a 50 basepair stretch of DNA is 25% (T) & 25% (A), then how many hydrogen bonds should hold the two strands together?
125