PCAT Bio Part 3
Terms
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- study of how traits are inherited from 1 generation ot the next
- genetics
- basic unit of heredity
- gene
- location of genes
- chromosomes
- composition of genes
- DNA
- alternative form of a gene
- allele
- genetic makeup of an individual
- genotype
- physical manifestation of the genetic makeup of an individual
- phenotype
- what a gene controls in an organism
- specific trait
- expressed allele
- dominant
- silent allele
- recessive
- organism that contains 2 copies of the same allele
- homozygous
- organism that carries 2 different alleles
- heterozygous
- where the dominant allele is expressed
- phenotype
- when only one trait is being studied
- monohybrid cross
- indicates all potential progeny genotypes
- punnett square
- having 3 copies of a chromosome
- trisomy
- having 1 copy of a chromosome
- monosomy
- changes in the genetic info. of a cell coded in the DNA
- mutations
- mutations here can lead to tumors
- somatic cells
- mutagenic agents
- carcinogens
- basis of heredity
- DNA
- basic unit of DNA
- nucleotide
- composition of a nucleotide
- deoxyribose bonded to a phosphate group and nitrogenous base
- 2 kinds of bases
- purines and pyrimidines
- 2 kinds of purines in DNA
- adenine and guanine
- 2 kinds of pyrimidines in DNA
- cytosine and thymine
- goes w/ T
- A
- goes w/ G
- C
- translates DNA language
- mRNA
- triplets that the mRNA translates
- codon