In a food chain herbivores/deer are-
In persons addicted to alcohol the liver gets damaged because it
Evolutionary history of an organism is known as:
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Solution
Paleontology is the study of fossils. Ontogeny is the process of development of organism in the embryo stage and phylogeny is known as the history of an organism through ages during evolution.
A living mechanical tissue having pecto-cellulosic wall thickening is –
Consider a gene that has two alleles and shows complete dominance. When two heterozygotes for this gene breed, they have a 25% chance of producing a homozygous recessive offspring. The next time they breed, what are the chances that they will once again have a homozygous recessive progeny?
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Solution
Each conception is an independent event, so the probabilities remain the same each time.
The cerebellum is concerned with:
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Solution
The cerebellum is concemed with coordination of muscular movement.
Which one of the following acids is a derivative of carotenoids?
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Solution
Abscisic acid (ABA), also known as abscisin II and dormin, is a plant hormone. It functions in many plant developmental processes, including bud dormancy.Abscisic acid is a derivative of carotenoids. It was called“abscisin II” originally because it was thought to play a major role in abscission of fruits. At about the same time another group was calling it “dormin” because they thought it had a major role in bud dormancy.The name abscisic acid (ABA) was coined by a compromise between the two groups.
Few cnidarians like corals have a skeleton composed of__________.
A single large central vacuole occurs in
The endosperm of Gymnosperm is-
Gap between meiosis – I and II is called :
Identical twins result when
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Solution
If an embryo splits before cell fate has been determined,identical twins may result.
The sum total of chemical reactions occurring in our body is called
Coralloid roots of Cycas are useful in
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Solution
Anabaena,Nostoc and bacteria are found in coralloid roots hence it helps in fixation of nitrogen.
The term taxon refers to –
Coloured rock-paintings were presumably first made by
In the five kingdom system of classification, which single kingdom out of the following can include blue-green algae, nitrogen fixing bacteria and methanogenic archaebacteria ?
Match Column – I with Column – II
| Column I | Column II |
|---|---|
| A. Hypothalamus | 1. Sperm lysins |
| B. Acrosome | 2. Estrogen |
| C. Graafian follicle | 3. Relaxin |
| D. Leydig cells | 4. GnRH |
| E. Parturition | 5. Testosterone |
A gene is said to be cloned if
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Solution
Although cloned genes may be used as part of, or in association with, the other choices, the definition of a cloned gene is one that has been isolated and repeatedly duplicated.
Large woody vines are more commonly found in :
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Solution
Large woody vines are more commonly found in tropical rain forests. This is a common concern in the high humidity climatic condition.