Cell Structure
Mitochondrial DNA is known as what type of DNA?
Maternal
What are the three parts of interphase?
G1, S, G2
What is the longest phase in mitosis?
Prophase
What is the genotype of a shaded individual?
aa
Define the product rule
When events are occurring simultaneously
What produces rRNA (ribosomal RNA)?
Nucleoli
In what phase is DNA replicated?
S phase
What is the last phase of mitosis?
Telophase
Probability of a normal child produced from two heterozygous parents being...
AA?
Aa?
1/3 AA
2/3 Aa
Define the addition rule
When the events cannot occur at the same time, add the probabilities together.
On average, how many base pairs make up human mitochondrial DNA?
16,000 base pairs
if the centromere is located at the end of the chromosome what is this referred to as?
Telocentric
What is the term for the separation of cytoplasm?
Cytokinesis
A normal individual has a 1/3 chance of bing AA and 2/3 of being Aa. Probability of producing an A gamete?
2/3 A
What is the probability of producing 1 boy and 3 girls in that order?
Probability of a boy = 0.52
0.058
What structure surrounds centrioles?
How many centrosomes make up one centriole?
Microtubules
2
In a normal cell how long does the cell stay in interphase relative to mitosis (percentage)?
90% interphase, 10% mitosis
Uncoiled, loosely packed DNA and proteins that exist during interphase?
Chromatin
You have a ⅚ chance of producing a gamete with A. Your partner has a ⅔ chance of producing a gamete with A. What is the probability of producing a child who is Aa?
7/18 chance of Aa
What is the probability of producing 5 brown seeds and 2 green seeds?
Probability of brown seed = 0.87
0.177
What kind of DNA does endogenous endonuclease break?
What cell function is this breakage a part of?
Linker DNA
Apoptosis
What active complex triggers the onset of mitosis?
What is the complex made of?
Maturation Promoting Factor (MPF)
Cyclin and cyclin-dependent kinases (CDC-2)
Structure that attaches to chromosome centromeres during mitosis
You and your parents are normal but your brother shows the recessive trait.
What gametes can you produce? (include probability of each gamete)
2/3 A
1/3 a
2 Creeper chickens are crossed. What is the probability of producing 2 normal chicks, 1 creeper chick, and 4 dead chicks?
105/8192 = 0.0128