78- In eukaryotes, newly synthesized proteins encoded in genes in the nucleus ar

Question

78- In eukaryotes, newly synthesized proteins encoded in genes in the nucleus are found in and DNA are observed in A. the cytoplasm; the nucleus B. the nucleus; the cytoplasm C. the nucleus; the nucleus also D. the cytoplasm; the cytoplasm also E. the nucleus; the nucleus also or the cytoplasm; the cytoplasm also 79- In a DNA strand, successive nucleotides are linked by A. hydrogen bonds B. base stacking C. 3'-5' phosphodiester bonds D. 2'-5' phosphodiester bonds E. peptide bonds 80- Nucleosome fiber is made and has ..diameter A. histones and DNA., 30 nm B. histones, DNA and RNA,300 nm C. histones, DNA, 10 nnm D. histones and DNA, 1400 nm 81. In a nucleotide, the phosphate is attached to thecarbon of the sugar, and the base is attached to the carbon of the sugar. C. 3'; 5 E. 5;3 A. 1; 5'B. 23' 82.A double-stranded DNA molecule carry more in length? formation than a single-stranded RNA molecule of the same B false A, True

Explanation / Answer

78) The correct option is A. the cytoplasm; the nucleus.

Newly synthesized proteins are synthesized by ribosomes that are present in the cytoplasm and DNA are present in the nucleus in the eukaryotes.

79)The correct option is C 3'-5' phosphodiester bonds.

Nucleotide consists of a molecule of sugar, phosphate and four bases such as adenine, guanine, thiamine, cytosine.The 5'-hydroxyl group of one nucleotide unit is attached to the 3'-hydroxyl group of the next nucleotide with the help of phosphodiester linkage.

80) The correct option is C histones, DNA, 10 nm.

Each nucleosome is composed of DNA with histones proteins. It has a diameter of approximately 11 nm.

81) The correct option is D. 5';3'.

Both the phosphate group and nitrogenous base are attached to the central pentose sugar. The nitrogenous base is attached to the 1’– carbon atom and the phosphate base is attached to the 5’– carbon atom.

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