#Question id: 3584
#Unit 8. Inheritance Biology
In a plant species, a segregating line (RR- Red, Rr- Pink and rr- white) that contains both homozygotes and heterozygotes at a locus can be made homozygous by repeated selfing for several generations. What is the proportional red flower in third generations of selfing, if the level of heterozygosity in generation '0' is denoted as 1?
#Question id: 3585
#Unit 8. Inheritance Biology
Tryhybrid cross allowed between AaBbCc X AaBbCc, what is the proportional of following genotype, If all character follow independent assortment?
AaBbCc, Aabbcc, AabbCc, AABBcc, AABbCC respectively
1. 8/64 2/64 4/64 1/64 2/64
2. 6/64 1/64 2/64 1/64 1/64
3. 6/64 2/64 4/64 1/64 2/64
4. 0 2/64 4/64 1/64 0
#Question id: 3586
#Unit 8. Inheritance Biology
In watermelons, bitter fruit (B) is dominant over sweet fruit (b), and yellow spots (S) are dominant over no spots (s). The genes for these two characteristics assort independently. A homozygous plant that has bitter fruit and yellow spots is crossed with a homozygous plant that has sweet fruit and no spots. If an F1 plant is backcrossed with the bitter, yellow spotted parent, what phenotypes and proportions are expected in the offspring?
#Question id: 3587
#Unit 8. Inheritance Biology
Short hair in rabbits (S) is dominant over long hair (s). The following crosses are carried out, producing the progeny shown.
A. short X short = Progeny ( 3 short and 1 long)
B- short X long = Progeny (1 short and 1 long )
What is possible genotypes of the parents of cross A and cross B respectively
#Question id: 3588
#Unit 8. Inheritance Biology
The ability to taste the chemical phenylthiocarbamide is an autosomal dominant phenotype, and the inability to taste it is recessive. If a taster woman with a nontaster father marries a taster man who in a previous marriage had a nontaster daughter. What is the probability that their first child will be tasters’ girl?
#Question id: 3589
#Unit 8. Inheritance Biology
Monohybrid Plant having genotype Tt were allowed to test cross , what is probability of random three plant selected that is
A- two tall, one dwarf B- one tall, two dwarf C- all tall