#Question id: 5463
#Unit 8. Inheritance Biology
Plants with genotype aabb have seeds that average 1 g in weight, whereas plants with genotype AABB have seeds that average 3.4 g in weight. Plant with genotype aabb is crossed with plant of genotype AABB. If the F1 plants are intercrossed to produced 2/8 proportional of F2 plant having expected seed weight
A . 1.6 B- 2.8 C- 2.2 D. 1 E . 3.4
#Question id: 5464
#Unit 8. Inheritance Biology
Two varieties of maize averaging AABBCC (200 inch) and aabbcc (80 inch) in height, respectively, are crossed. The F1 progeny is quite uniform averaging 140 inches in height allowed to self fertilization. If height is control by 3 pair of polygene, what is the height of following genotype of F2 plant?
I- AaBBCC II- aaBbCC III- aabbCc
#Question id: 5465
#Unit 8. Inheritance Biology
A pure line apple plant yielding 3.5 pound apple was crossed with a .5 pound apple yielding plant, all F1 progenies yielded apples of 2 pound, F1 plant allowed to self fertilization then what will be proportional of 3 pound, 2 pound and .5 pound respectively among offspring if character is governed by 3 pair of polygene
#Question id: 5466
#Unit 8. Inheritance Biology
Researcher studies of discontinuous and continuous character, the following conclusion were made
a. Discontinuous characteristics exhibit few distinct phenotypes
b- Continuous characteristics exhibit a wide range of phenotypes
c .Continuous characteristics are frequently produced by effects of many genes
d. Continuous characteristics are frequently produced by effects of environment
Which of above conclusion is correct?
#Question id: 5467
#Unit 8. Inheritance Biology
Two varieties of maize averaging 25 and 125 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 75 inches in height. Of the 500 F2 plants, the Shortest 2 is 25 inches and the tallest 2 are 125 inches. What will be number phenotype observe in F2 progeny and number of polygene contribute for that character respectively?
#Question id: 5468
#Unit 8. Inheritance Biology
Plant height is control by polygenetic trait. Plant having height 6 cm are allowed to cross with plant having height 2 cm , all F1 progeny having height uniform 4 cm were allowed selfing to produced F2 progeny in which 5 out of 320 with height of 6 cm. What will be phenotype ratio in F2 generation?