Cell Division
Three reasons for cells to divide
Growth
Repair
Replacement
Type of reproduction that produces identical offspring (young)
Asexual
What nitrogenous base is always paired with thymine?
Adenine
The site where helicase unzips and unwinds the parent DNA is called the
replication fork
Increased tension on the skin triggers skin cells to divide and cover a larger surface area. What primary reason are cells dividing?
Growth
If a disease spreads through a population, this type of reproduction increases the chance some survive.
Sexual reproduction
Loosely coiled DNA found in the nucleus is called
chromatin
If DNA replication goes wrong, this can occur.
A mutation
Building muscle tissues involves microtears that reinforces the fibers to become thicker and stronger. What primary reason are cells dividing?
Repair
When population numbers are low, this form of reproduction is more advantageous
Asexual
The "outside ladder" of DNA structure is made of these two molecules.
deoxyribose (sugar)
phosphate
The enzyme that binds the small fragments on the lagging strand together.
DNA Ligase or Ligase
The ways somatic cells (non-reproductive) divide? (what is the name of the process?)
Mitosis
Sexual reproduction is beneficial in changing environments because of this. (it provides the population with ___________)
Genetic variation
DNA double helix is arranged in a(n) _________________________ way. (what directions do the two strands go)
anti-parallel
Short pieces of DNA that are formed on the lagging strand during replication.
Okazaki Fragments
The ways gametes (reproductive cells) divide? (what is the name of the process?)
Meiosis
This type of reproduction allows for species to adapt and evolve over time
Sexual
A single human cell contains approximately this length of DNA when stretched out
2 meters
DNA polymerase always adds nucleotides towards the ____ end of the DNA strand
3'
3 prime