Chromosomes And Cellular Respiration Flashcards
(35 cards)
Mendel used this plant. Easy to grow. Grows and reproduces in a single season. Self fertilizing, cross fertilization
Pisium sativum (garden pea)
Experiment mating of two individual with contrast forms of a character
Mono hybrid cross
Only one character is studied in the experiment . Contrasting forms: traits
Mono hybrid cross
P1 is _____
Parental generation
F1 is _____
First filial generation (offspring from P1)
F2 is ______
Second filial generation (offspring from F1)
Each trait is determined by a _____. Example is___
Unit factor. Seed shape (character). R: round. r: wrinkled
Unit factors are either ____ or _____
Dominant or recessive
Unit factors exist in _____ in each individual
Pairs. RR, Rr, rr
Each one of the gametes produced by an individual contains only one of the unit factor for each _____
Character
Genetic characters are controlled by unit factors that exist in ____ in individual organisms
Pairs
When two unlike unit factors responsible for a single character at present in a single individual, one unit factor is _____ to the other, which is said to be ______
Dominant, recessive
During formation of gametes, the paired unit factors _____, or _____ randomly so that each gamete receives one or the other with equal likelihood.
Separate, segregate
Units of inheritance (Mendels unit factors). Occur in pairs in homologous chromosome
Genes
Alternative forms of a gene (resulting in contrasting traits for a character)
Alleles
The genetic makeup of an individual (the alleles present in an individual)
Genotype
An individual with two copies of the same form (allele) of a gene
Homozygote
Individual with two different forms (alleles) of a gene
Heterozygous
Physical expression of a trait (consequence of the individuals genotype)
Phenotype
Different alleles for a particular gene occupy the same ____ on homologous Chromosome
Locus
Mating experiment to determine the genotype of an individual that exhibits the dominant phenotype
Test cross
Recessive phenotype will be observed in the progeny only if the test individual is ______
Heterozygous
Genes are ____ arranged on each chromosome
Linearly
An exact location on a chromosome
Locus