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#Question id: 348


Sulfur is in the same column of the periodic table as oxygen, but has electronegativity similar to carbon. Compared to water molecules, molecules of H2S will ________.

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. have greater cohesion to other molecules of H2S

  2. have a greater tendency to form hydrogen bonds with each other

  3. have a higher capacity to absorb heat for the same change in temperature

  4. not form hydrogen bonds with each other

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TLS Online TPP Program

#Question id: 5462

#Unit 8. Inheritance Biology

What was the ratio of F2 generation when red and white kernelled variety of wheat were crossed when 2 QTL control character?

TLS Online TPP Program

#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  

TLS Online TPP Program

#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

TLS Online TPP Program

#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

TLS Online TPP Program

#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?

TLS Online TPP Program

#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?