STD 11 - 16. Excretory product and their elimination — NEET STD 11 Science — Question

One of the strands of double stranded DNA has base composition as follows: 15% A, 15% T, 40%G and 30%C. What will be the percentage of these bases in the complementary strand?

What is the oxidation product in green sulphur and purple sulphur bacteria:

In man, which of the following genotypes and phenotypes may be the correct result of aneuploidy in sex chromosomes?

Which one of the following hormones contains iodine?

Which accessory digestive gland found in cockroach?

Identify wrong pair

Which statements are incorrect for malaria ?
(i) Plasmodium vivax, P. malariae and P. falciparum are different species of Plasmodium which are responsible for different types of malaria.
(ii) Malignant malaria caused by P. vivax is the most serious one and can even be fatal.
(iii) Malaria parasite requires two hosts-human and mosquitoes-to complete its life cycle.
(iv) The female Culex mosquito is also usually acts as the vector.
(v) Infectious form of Plasmodium is gametocyte which enter in body of healthy person through the bite of infected female Anopheles mosquito.
(vi) The parasites initially multiply within the liver cells and then attack the red blood cells (RBCs) resulting in their rupture.
(vii) Haemozoin, which releases from ruptured RBCs is responsible for the chill and high fever recurring every three to four days.

- They are pathogens

- They attack insects and other arthropods.

In the diagram of excretory system of human beings given below, different parts have been indicated by alphabets; choose the answer in which these alphabets have been correctly matched with the parts which they represent