Analysis of DNA of an organism revealed the following characters. Mark the option that is not likely to be true if the organism is a cat.

The double helix is antiparallel & a linear molecule

No worries! We‘ve got your back. Try BYJU‘S free classes today!

20 bases comprising of a mixture of deoxyribonucleotide phosphates (dNTPs) were found in a single

360^{o}

turn of helix

No worries! We‘ve got your back. Try BYJU‘S free classes today!

17 % of the nitrogenous bases were shown to be cysteines

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Uracil was lacking but guanine was 17 %

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D 17 % of the nitrogenous bases were shown to be cysteines
The DNA double helix polymer of nucleic acid held together by nucleotides which base pair together. In B-DNA, the most common double helical structure found in nature, the double helix is right-handed with about 10–10.5 base pairs per turn. The double helix is antiparallel & a linear molecule and uracil are not present in DNA.

So the correct option is '17 % of the nitrogenous bases were shown to be cysteines'.

Suggest Corrections

Similar questions

While analyzing the DNA of an organism, a total number of 5386 nucleotides were found out of which the proportion of different bases were Adenine = 29%, Guanine = 17%, Cytosine = 32%, and Thymine = 17%. Considering Chargaff’s rule, it can be concluded that

It is single-stranded DNA.

It is double-stranded linear DNA.

No conclusion can be drawn.

It is a double-stranded circular DNA.

Choose the correct answer from the alternatives given :

While analysing the DNA of an organism a total number of 5386 nucleotides were found out of which the proportion of different bases were: Adenine = 29%, Guanine = 17%, Cytosine = 32%, Thymine = 17%. Considering the Chargaff's rule it can be concluded that:

Q. While analysing the DNA of an organism, a total number of 5386 nucleotides were found, out of which the proportion of different bases were adenine = 18 %, guanine = 32 %, cytosine = 32 % and thymine = 18 %. Considering the Chargaff’s rule, it can be concluded that

Q. In a DNA double -helix , guanine and cytosine bases, shown above, are paired together by:

Q. In sea urchin DNA, which is double stranded, 17 % of the bases were shown to be cytosine (C). The percentages of the other three bases (G, A and T) expected to be present in this DNA are:

Join BYJU'S Learning Program