Question

. Give the predicted phenotypes for the F1-generation resulting from a dihybrid cross of the haploid gametes originating from the diploid parents, RRtt x rrTT, in the Punnett Square below. In each square, choose colony colour (red or white) and growth / no growth on MIN (+ or -) from the drop-down menus. Also choose the correct the genotypes of the haploid gametes. The RRtt parent gives rise to the mating type “alpha” gametes and the rrTT parent forms “a” mating type gametes. 5 marks

		alpha-gametes
		RT	rT	Rt	rt
a-gametes	RT	colour: white growth: +	colour: white growth: +	colour: white growth +	colour: White growth: +
	rT	colour: white growth: +	colour: red growth: +	colour: white growth +	Colour: red Growth +
	Rt	colour: white growth: +	colour: white growth: +	colour: white growth: -	Colour: White Growth: -
	rt	colour: white growth: +	colour: red growth: +	colour: white growth:  -	Colour: Red Growth :  -

2. Referring to the table in Question 1, answer the following regarding the cross: 4 marks

1. Give the genotype(s) of the diploid offspring and specify each genotype as being homozygous or heterozygous: Click here to enter text.
2. Give the percentage(s) of the genotype(s) listed in (a): Click here to enter text.
3. Give the phenotypes(s) of the diploid offspring and the percentage of each phenotype: Click here to enter text.
4. The genotype of the “alpha” mating type parent was Choose an item. and its phenotype was Choose an item.
5. The genotype of the “a” mating type parent was Choose an item. and its phenotype was Choose an item.

Eventually the F1-generation diploids will undergo meiosis and sporulation, list all the possible genotypes of the resulting haploid gametes: Click here to enter text.

Answer 1

Answer is attached by mentioning notes number