Mendelian Genetics Flashcards
What is the first generation called? The second? The third? etc…..
First generation is the P generation. the offspring of the P generation is called F1 generation, their offspring are called F2, etc….
What is an example of a monohybrid cross?
purple flowers x White flowers
Genes are found in alternative versions called ________.
Alternative versions of a gene are called alleles
A homozygous genotype has ________ alleles. what is an example of this? Like using the letter P and p
A homozygous genotype has identical alleles the letters possible are PP and pp
A heterozygous genotype has 2 _____ alleles. what are the possible letter scenarios?
heterozygous has 2 different alleles. the letter can be Pp
PP what is this?
Homozygous dominant
what is this? aa
homozygous recessive
what is this? Bb
heterozygous
What is the phenotype of
Purple PP
White pp
Would be all purple. the punnett square would have Pp in all squares. 100% purple
what is the phenotype of
purple Pp
white pp
50% Heterozygous(Pp) and 50% homozygous recessive(pp)
what is the phenotype of Pp and Pp?
25% Homozygous dominant (PP)
50% heterozygous (Pp)
25% Homozygous recessive (pp)
What is Mendel’s 1st law?
Segregation: each pair of alleles of a trait separate from each other during miosis
What phase of meiosis is Mendel’s 1st law?
Anaphase I
what is Mendel’s 2nd law?
Independent assortment: Alleles on different chromosomes are inherited independently from each other.
What phase of meiosis is mendel’s 2nd law?
Metaphase I
