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What causes cells to become cancerous?
When a body cell divides out of control
Gregor Mendal is known as
The Father of Genetics
An organisms with bb genotype is
recessive, homozygous
An organisms with Bb genotype is
dominant, heterozygous
An organisms with BB genotype is
dominant, homozygous
Define genotype
it is the pair of alleles that an organism inherits for traits.
A farmer breeds two rabits. 1 black and 1 white, black is dominant to white. Half of the offspring are black or white. What can you infer about the genotype of the black rabbit?
The parent was dominant heterozygous (Bb)
What is used to predict the offspring between two parents?
Punnett Square or test cross
Describe the structure of DNA
sugar (deoxyribose) and phosphate strands connected by nucleotides.
Which stage do cells grow, carry out normal cell functions and prepare to replicate DNA?
Gap 1 (G1)
All DNA and RNA are based on
nucleotides
When describing strands of DNA or mRNA, what is used to orientate the strands?
3' and 5', carbons of ribose (sugar) link
What is nondisjunction?
sister chromatids do not seperate during meiosis
What would be the complimenary strand of DNA to 5' AAGTTG 3'
5' TTCAAC 3'
What is the nitrogen base found only in RNA?
uracil instead of Thymine
In DNA replication, what is the first step?
unwinding or unzipping by DNA helicase
