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

Receptor sites for neurotransmitters are present on

During DNA replication, Okazaki fragments are used to elongate

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

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

The genotypes of a husband and wife are$I^{A}I^{B} and I^{A}i.$ Among the blood type of their children, how many different genotypes and phenotypes are possible?

Viroids differ from viruses in having

Mycorrhizae are the example of

The morphological nature of the edible part of coconut is

Myelin sheath is produced by

Match the following sexually transmitted diseases (Column-I) with their causative agent (Column-II) and select the correct option.

Which among these is the correct combination of aquatic mammals?

Coconut fruit is a

A dioecious flowering plant prevents both

Which of the following are found in extreme saline conditions?

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?

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

Life cycle of Ectocarpus and Fucus respectively are

The region of biosphere reserve which is legally protected and where no human activity is allowed is known as

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

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

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

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

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

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

In Bougainvillea, thorns are the modifications of

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?

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?

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

A temporary endocrine gland in the human body is

Attractants and rewards are required for

Functional megaspore in an angiosperm develops into

Which of the following in sewage treatment removes suspended solids?

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

Which of the following is made up of dead cells?

Zygotic meiosis is characteristic of

MALT constitutes about $\underline{\phantom{xxxx}}$ of the lymphoid tissue in the human body

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

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

Which one of the following is related to ex-situ conservation of threatened animals and plants?

Which of the following RNAs should be most abundant in an animal cell?

Which statement is wrong for Krebs’ cycle?

Hypersecretion of growth hormone in adults does not cause further increase in height, because

Plants which produce characteristic pneumatophores and show vivipary belong to

Asymptote in a logistic growth curve is obtained when

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

Artificial selection to obtain cows yielding higher milk output represents

Frog’s heart when taken out of the body continues to beat for some time. Select the best option from the following statements.$\newline$(a) Frog is a poikilotherm.$\newline$(b) Frog does not have any coronary circulation.$\newline$(c) Heart is myogenic in nature.$\newline$(d) Heart is auto-excitable.