Cells 1
Smallest structural and functional unit of an organism
Cell
What cell division process produces two identical daughter cells?
Mitosis
How many chromosomes are inherited from 1 parent?
23
What is a phenotype?
Physical Appearance of a gene
Who is the father of evolution?
Charles Darwin
What are the working parts of cells?
Organelles
What are the phases of Interphase in order?
G1, S, G2
What type of mutation derives from the incorrect splitting of chromosomes during anaphase?
Nondysjunction
What is it called when one allele is expressed over the other?
Dominant allele
What type of selection occurs between animals based on mating rituals and traits that make them attractive?
Sexual Selection
What is responsible for the synthesis and processing of lipids?
Smooth ER
Do all cells in the body undergo mitosis?
Nope! Gametes don't do mitosis!
What event causes genetic variation during reproductive cell division?
Crossing over
What would the genotype be for a blue eyed person? (Blue eyes are recessive)
homozygous recessive
Who is more fit?
Lion A 500 pound male lion, 18 years old, fathered 30 cubs into adulthood, controls 50 sq miles of territory
Lion B 350 pound male lion, 15 years old, fathered 37 cubs into adulthood, lone lion that jumps from pride to pride
Lion B
What are 3 characteristics of Prokaryotic cells that differ from Eukaryotic cells?
Small, no nucleus, no organelles, unicellular
In what phase of meiosis does crossing over occur?
Prophase 1
What are the reproductive cells called?
Gametes
Do the following cross: Rr x RR
Give genotypic ratios for points!
Genotypic: 2/4 homozygous dominant
2/4 heterozygous
What was wrong with Lamark's theory of Natural Selection?
He theorized that mutations are goal driven, we know that they are random!
What are the four requirements to be considered a cell?
Cell membrane, cytoplasm, DNA, and ribosomes
Draw the chromosomes in the cell during each phase of mitosis.
Varies
The somatic cells of a cat have 38 chromosomes, what is the diploid number of chromosomes for cats?
38!!!!!!
Complete the cross: a heterozygous brown haired female and a homozygous blonde haired male.
To earn points: Must have completed square AND the genotypic & phenotypic ratios
Geno: 1/2 heterozygous 1/2 homozygous recessive
Squirrels and bears both live in the forest. They both have evolved to have thick fur and hibernate in the winter time to conserve energy. What is this?
Convergent Evolution