NEET 2017 Biology

Which statement is wrong for Krebs cycle?

The genotypes of a Husband and Wife are I^AI^B and I^Ai. Among the blood types of their children, how many different genotypes and phenotypes are possible?

Phosphoenol pyruvate(PEP) is the primary CO₂ acceptor in

Double fertilization is exhibited by

Which of the following are found in extreme saline conditions?

Which of the following is made up of dead cells?

Attractants and rewards are required for

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?

Select the mismatch

Which cells of ‘Crypts of Lieberkuhn’ secretes antibacterial lysozyme?

Adult human RBC’s are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?
(a) They do not need to reproduce
(b) They are somatic cells
(c) They do not metabolize
(d) All their internal space is available for oxygen transport.

The hepatic portal vein drains blood to liver from

The final proof for DNA as the genetic material came from the experiments of

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

Which of the following options gives the correct sequence of events during mitosis?

Which one of the following statements is correct, with reference to enzymes?

During DNA replication, Okazaki fragments are used to elongate.

Which of the following are not polymeric?

The region of Biosphere Reserve which is legally protected and where no human activity is allowed is known as

A dioecious flowering plant prevents both

A temporary endocrine gland in the human body is

Match the following sexually transmitted diseases(Column-I) with their causative agent (Column-II) and select the correct option.
(a) Gonorrhea (i) HIV
(b) Syphilis (ii) Neisseria
(c) Genital Warts (iii) Treponema
(d) AIDS (iv) Human Papilloma-Virus

Transplantation of tissues/ organs fails often due to non-acceptance by the patient’s body. Which type of immune-response is responsible for such rejections?

Spliceosomes are not found in cells of

An example of colonial alga is

Which of the following represents order of ‘Horse’?

Which of the following cell organelles is responsible for extracting energy from carbohydrates to form ATP?

The process of separation and purification of expressed protein before marketing is called as

Mycorrhizae are the example of

Viroids differ from viruses in having?

Root hairs develop from the region of

Coconut fruit is a

Plants which produce characteristic pneumatophores and show vivipary belong to

Which one of the following is related to Ex-situ conversation of threatened animals and plants?

Select the mismatch.

Which of the following facilities opening of stomatal aperture?

The association of histone H1 with a nucleoside indicates

DNA fragments are

Capacitation occurs in

Which ecosystem has the maximum biomass?

A disease caused by an autosomal primary non-disjunction is

Life cycle of Ectocarpus and Fucus respectively are

If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?

The pivot joint between atlas and axis is a type of

A gene whose expression helps to identify transformed cell is known as

Presence of plants arranged into wall defined vertical layers depending on their height can be seen best in.

Zygotic meiosis is characteristic of

Which of the following is correctly matched for the product produced by them?

Frog’s heart when taken out of the body continues to beat for sometime. Select the best option from the following statements.
(a) Frog is a poikilotherm.
(b) Frog does not have any coronary circulation.
(c) Heart is myogenic in nature.
(d) Heart is autoexcitable.

In case of poriferans, the spongocoel is lined with flagellated cells called as

Which of the following RNA’s should be most abundant in animal cell?

Which among these is the correct combination of aquatic mammals?

With reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?

Asymptote in a logistic growth curve is obtained when.

Out of ‘X’ pairs of ribs in humans only ‘Y’ pairs are true ribs. Select the option that correctly represents values of X and Y and provides their explanation.

The DNA fragments separated on an agarose gel can be visualized after staining with.

Functional megaspore in an angiosperm develops into

Among the following characters, which one was not considered by Mendel in his experiments on pea?

Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of

GnRH, a hypothalamic hormone, needed in reproduction, acts on.

In Bougainvillea thorns are the modifications of

Which one from those given below is the period for Mendel’s hybridization experiments?

Good vision depends on adequate intake of carotene rich food.
Select the best option from the following statements.
(a) Vitamin A derivatives are formed from carotene.
(b) The photopigments are embedded in the membrane disc of the inner segment.
(c) Retinal is a derivative of Vitamin A.
(d) Retinal is a light absorbing part of all the visual photopigments.

Which one of the following statements is not valid for aerosols?

A decrease in blood pressure/ volume will not cause the release of

Homozygous purelines in cattle can be obtained by

The vascular cambium normally gives rise to

Which of the following statements is correct?

Fruit and leaf drop at early stages can be prevented by the application of

A baby boy aged two years is admitted to play school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?

An important characteristic that Hemichordates share with Chordates is

Artificial selection to obtain cows yielding higher milk output represents

Select the correct route for the passage of sperms in male frogs

Which of the following options best represents the enzyme composition of pancreatic juice?

The morphological nature of the edible part of coconut is

Anaphase Promoting Complex(APC) is a protein degradation machinery necessary for proper mitosis of animal cells. If APC us defective in a human cell, which of the following is expected to occur?

MALT constitutes about ___ percent of the lymphoid tissue in human body.

Receptor sites for neurotransmitters are present on

Hypersecretion of Growth Hormone in adults does not cause further increase in height, weight.

Alexander Von Humbolt described for the first time

Myelin sheath is produced by

Incase of a couple where the male is having a very low sperm count, which technique will be suitable for fertilization?

Which of the following components provides sticky character to the bacterial cell?

DNA replication in bacteria occurs

The function of copper ions in copper releasing IUD’s is

Which of the following in sewage treatment removes suspended solids?

The water potential of pure water is

Identify the wrong statement in context of heartwood.

Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement.

Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by