Phase-contrast microscopy is suitable for observing which kind of sample?

1. Single cells 

2. Group of cells

3. Thin cell layers

4. Thick cell layers

Which of the following options is correct?

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#Question id: 762

#SCPH28 | Zoology

Regarding the sugar residues in nucleic acids, which, if any, of the following statements is incorrect?

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#Question id: 1123

#SCPH01 Biochemistry

Epinephrine can be what kind of signaling molecule?

a. autocrine      b. direct contact  c. endocrine d. paracrine

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#Question id: 3556

#SCPH01 Biochemistry

Flower color in plant follows incomplete dominance. Cross between AA and aa results all F1 offspring are uniform were allowed to cross with AA genotype. What will be phenotype ratio?

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#Question id: 1278

#SCPH28 | Zoology

Vertebrate gap junctions are composed of:

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#Question id: 15007

#SCPH12 I Genetics

You set up a cross between true breeding wild type male fruit flies and true breeding female flies with a yellow body color. You notice in the F1 generation that half the flies, specifically all the males, have yellow body color while the females are wild type (gray). Which of the following explanations is the most likely?