Inglise keel unit 5 answers
ab AaBb Aabb aaBb aabb
red spines pink spines green spines green spines
(ii) many AaBb and aabb;
ref 1 : 1 ratio of these;
ref linkage;
ref parental types;
few Aabb and aaBb;
ref 1 : 1 ratio of these;
ref recombinants;
ref crossing over;
many red and green spined;
few / no, pink spined;
1 : 1 green : red / more green than red;
ref proportions depend on how close, loci / genes, are; max 5
[15]
159. (a) 1 prevent, self-pollination / unwanted pollination, of flowers;