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How are an organism's traits controlled?
They are controlled by the alleles inherited from their parents.
a chart that shows all the possible combinations of alleles that can result from a genetic cross
Stage: Meiosis 1
chromosome pairs move to the center, separate, and pull the cell intro two cells. With half the number of chromosomes in each.
Stage: Meiosis end
four sex cells have been produced, with only half the number of chromosomes that the parent cell had at the beginning.
production of proteins. Uses the info from a gene on a chromosome to produce a specific protein. takes place in the cytoplasm of a cell.
Differences between RNA and DNA
RNA: has one strand, uses Uracil, and has Ribose. DNA: has 2 strands, uses thymine, and has Deoxyribose
Trans. the code: 1
DNA molecule unzips between the bases to allow the RNA strand to match up and transfer genetic info from the DNA to the RNA.
Trans. the code: 2
Messenger RNA leaves the nucleus and attaches to a ribosome. The RNA provides the code to make a protein molecle.
Trans. the code: 3
Transfer RNA attaches to the messenger RNA. Transfer RNA "read" the message by pairing up to the messenger RNA. Messenger RNA carries amino acids that link in a chain.
Trans the code: 4
Protein molecule grows as each transfer RNA put the amino acid along the chain. The chain grows until they have enough and the the ribosome releases the completed protein.
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