NEET Biology Principles of Inheritance and Variation
- Who gave Agarose gel electrophoresis method?
- Please explain this answer in detail and also tell that how will we know that what are non allelic gene referred in this question.
- What proportion of the offsprings obtained from cross AABBCC X AaBbCc will be completely heterozygous for all the genes segreated independently?(Please explain in detail with the cross) (a)1/8 (b)1/4 (c)1/2 (d)1/16
- Probability of four sons to a couple is [explain in detail]: (a)1/4 (b)1/8 (c)1/16 (d)1/32
- In a cross between AABB X aabb , the ratio of F2 genotype between AABB,AaBB,Aabb and aabb would be [I have read this chapter in detail, but still I am not able to solve these type of questions, so please tell me how should I improve myself to master this chapter.Also please explain this question in detail.] (a)9:3:3:1 (b)2:1:1:2 (c)1:2:2:1 (d)7:5:3:1
- Two linked genes a and b show 20% recombination.The individual of a dihybrid cross between ++/++ x ab/ab shall show gametes: [I was not able to understand this question what examiner exactly wants to ask here, '++' signifies what ?SO,i request to the expert please explain this question in detail(also tell which concept should be used to answer this question)] (a)++80:ab:20 (b)++50:ab:50 (c)++40:ab 40 : + a 10 : +b:10
- On selfing a plant of F1- generation with genotype "AABbCC", the genotypic ratio in F2- generation will be:[Please explain the cross in detail] (a)3:1 (b)1:1 (c)9:3:3:1 (d)27:9:9:9:3:3:3:1
- One of the parent of a cross has a mutation in its mitochondria. In that cross , that parent is taken as a male. During segregation of F2 progenies that mutation is found in [Its answer is (b) , but my question is that why mutation is not transferred to progeny .As mitochondria also carry its own genetic material ]: (a)one- third of the progenies (b) none of the progenies (c)all the progenies (d) 50% of the progenies
- In humans the number of chromosomes is 46 i.e (22+XX/XY),then what would be the chromosome number in (both male and female ,autosome and allosome): (a)Drosophilla (b)Grasshopper (c)Hen (d)Butterfly
- Why thalassemia is called as cooley's anaemia?
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