Meiosis/Life Cycles
Genetics
PHYLOGENETICS/EVOLUTION
HOMEOSTASIS
IMMUNITY
100
What products do you get from meiosis?
4 daughter cells with 23 chromosomes
gametes: sperm cells and egg cells
100
In a population of squirrels, the genotype for a tan coat is dominant over the genotype for a white coat. In the population, 10% of squirrels are white. What percentage of squirrels are homozygous dominant?
46.8%
100
What caused the oxygen revolution?
Cyanobacteria started producing oxygen through photosynthesis
100
What feedback system promotes homeostasis?
negative feedback
100
What kind of response are lymphocytes involved in?
Acquired and specific
200
Crossing Over occurs during
Prophase 1
200
In a population where sickle cell anemia is common and 5% of the population has the disease…What percentage of the population has some sickle cells and resistance towards malaria?
34.7%
200
What are the three domains of life?
bacteria, archaea, eukarya
200
What is the regulation of water levels in the body?
osmoregulation
200
What cells are involved in innate and non-specific responses?
phagocytes
300
What is the difference between mitosis and meiosis?
Meiosis and mitosis both start the same, however, meiosis has an extra division with no replication
300
An individual has a brother who is color blind but none of his parents are color blind. What are the parent’s genotypes?
X^A Y and X^A X^a
300
What organisms have a common ancestor with protists?
Animals
Fungi
Plants
Bacteria
300
What gland secretes hormones that controls other glands?
The pituitary gland
300
What is adaptive immunity?
Recognition to a specific pathogen
Use of a wide range of set receptors
slow response
All plants
400
Anaphase 1
400
An individual has a brother who is color blind but none of his parents are color blind.What is the individual genotype?
X^A Y
400
Do all true animals have embryos with cell layers?
yes
400
What two hormones does the pancreas produce to regulate blood sugar?
insulin and glucagon
400
What happens during an inflammatory response?
Phagocytosis
Leaky capillaries
Fluid accumulation
500
What is the difference between mitosis and meiosis?
Meiosis and mitosis both start the same, however, meiosis has an extra division with no replication
500
What process/event results in an extra chromosome being present in early embryonic development?
nondisjunction
500
What are the unique characteristics of the three monophyletic groups in eukarya?
Animals- embryos with germ tissue
fungi- chitin cell walls
Plants- apical meristem
500
What two systems work together to filter waste out of the body?
circulatory and excretory system
500
How do B and T lymphocytes fight an antigen in specific immune response?
B cells secrete antibody to fight free floating antigen
T lymphocytes kills cells that contain the antigen