Biology
General
Easy
Question
A are granular structures first observed under electron microscope as dense particles by …B… (1953). Here, A and B refer to
A-Ribosomes; B-Perner
A-Lysosomes; B-de Duve
A-Peroxisomes; B-Flemming
A-Ribosomes; B-George Palade
A-Ribosomes; B-Perner
A-Lysosomes; B-de Duve
A-Peroxisomes; B-Flemming
A-Ribosomes; B-George Palade
The correct answer is: A-Ribosomes; B-George Palade
J D Watson and F H C Crick (1953) showed that DNA has a double helical structure with two polynucleotide chains connected by hydrogen bonds and running in opposite directions (antiparallel). The antiparallel strands of a DNA molecule means that the phosphate groups at the start of two DNA strands are in opposite position (pole).
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