How many different genotypes will be expected from a testcross of an individual with the genotype A/a; B/B; D/d; E/e; f/f?     64   8   16   81   27

wwwwwwww wwwwwwwww If the progeny of the cross aaBB x AAbb is testcrossed, and the following genotypes are observed among the progeny of the testcross, what is the frequency of recombination between these loci? AaBb 135 wwwwwwww Aabb 430 www aaBb 390 wwwwwwww aabb 120 wwwwww

A 3-point test cross produces the following numbers of offspring: + + a 348 How many double recombinant offspring are g x + 363 there? + X + 88 O 1 g +a 96 g + + 61 O 711 + X a 40 О 285 g x a 1 + + +

What is the coefficient of coincidence and the interference? Answer in 2 decimals

Please help me, this is from practice, double check your answers, previous tutors got it wrong

11:34 Make the following Punnett square. RrYYTT x rrYytt 8*8 or 64 squares. Use a blank sheet as needed. What is the phenotypic ratio of the offspring? Your gametes: 1-3-5; 1-3-6; 1-4-5; 1-4-6; 2-3-5; 2-3-6; 2-4-5; 2-4-6;

Cross a heterozygous tall, true-breeding yellow podded pea plant with a homozygous tall, hybrid green podded pea plant. (Tall is dominant over short, Green pods are dominant over yellow) 2 factor cross problem

R d 4. (3) D R and D are linked; the distance between R and D is 10 cM. G is unlinked. Now, you test cross this individual. a) (1) What % of the progeny of the test cross will be dominant for both R and D (ignore G)? b) Now, using all 3 genes, figure out the % of each gamete and they should all add up to 100%. I did one for you (see below). Make sure you know how to do a problem like this. These gametes are: RDG Rdg rDG RdG 22.5% rDg RDg rdG