Question

question 1

a) S. superis is a rare flowering plant that can produce blooms in two colours, purple (P) and teal (p), and two shapes, four petals (F) and seven petals (f).  Purple is dominant to teal, and four is dominant to seven petals. S. superis is a diploid organism, 2n  = 4, that can both self-fertilize and mate with other plants of the same species (out-cross).  You find one of these rare plants in your garden and it has purple flowers with four petals.  Assuming this lonely plant must self-fertilize what potential offspring phenotypes could you see?

Select one:

a. Purple with seven petals

b. Purple with four petals

c. Teal with seven petals

d. All of the phenotypes listed are possible depending on the genotype of the plant.

b) Your friend is working with S. superis plants in the lab and has set up a cross between a plant with four purple petals and a plant with seven teal petals. Of the 200 offspring from the cross all have purple petals but about 1/2 have four petals and 1/2 have seven petals.

If you were to write out the cross that your friend set up what would it look like genotypically?

Select one:

a. PpFf X PpFf

b. PPFF X ppff

c. PpFF X ppff

d. PpFf X ppff

e. PPFf X ppff

Answer 1

Ouestion 1 a) Given phenotype of plant → Periple flowers with four petals holations for different factors as follow : is colour fuple (P) denuirent out teal (t) rencine ii) Shape - four petals (F) dominant v seven petals (f) receive Assuming that plant must self fertilize following Conditions of plant genotype suiße plant - of one of quien genotype. i) PPFF ii) ppff ) Pp FF iv) Peff Now we can evaluate result of self-cross of following genotypes - :) Parents - factors . PPFF Pf x PPFF pf offspring - PPFF (All people and four petals) 11) Pp Ff Parents facters - Ppff X - pi bf pf bf pr bf pf pF offsprings PF Perfo pp. Fifa 2 FL, preference ni 1-4-4-4-494- Kiberdrup) tee-Sw feple. Som chel-four) 1 pf poff poft peff (ppff (Purple-four chorple Seaf (herple-7)| (Purple-four) of pbfflflff JEFF f )pl firem “ Meyle-four) cient four) Troupe-fersitet-focer) ] 11) Parents - Ppff X Ppff ZZRILLLILLE facters - PF RF pf ff offspring - PeFF PAFF Ppff poft (Perple-four) (purple four) (purple) (feal to AAA A A A A A A / . Parents - iv) PPFF X Ppff Pf pf Pf pf Peff ppff PPFf pfff FRorple) perple) (herples (Purple) (four) (four) four) Isenen) As per observing all four self crosses, it can be deduce that option (d) is sight ie All of phenotypes listed are possible CELL227 fost first thing we need to do is to shart out options and oppoach most suitable choices. do, option a) is out of question is its a coast between - two people flower plant . . Mecat promuesing options wee b) PPF F x ppff f e) PPFf xppff Out Q these" e) is more feu aveable four condikon as b option gives only single mascast of factor i:e Pfeff. while cross of option e) go something like this parents - PPFf xppff factors - PF offspring - PPFP Prff che opening ce rere) Sos answer û e) ppff x peff. scanned with CamScanner