Please select a subject first
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Between which type of flowers geitonogamy is found?
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Which of the following is TRUE with reference to geitonogamy?
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Synthesis of ethylene takes place in ______
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ln which of the following cross-pollination does not occur?
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Which of the following term correctly describes the membrane which allows passage of certain substances more readily than others?
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Identify I and II in the given diagram of chromosome.
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Match Column I with Column II and select the correct option:
| Column I | Column II | ||
| p. | Pleiotropy | I. | More than two alleles occur at the same locus on homologous chromosomes |
| q. | Multiple alleles | II. | Expression of both the alleles m heterozygous condition |
| r. | Polygenic | III. | Multiple effect of single gene |
| s. | Co-dominance | IV. | Single phenotypic character influenced by more than two genes |
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Match the Column-I with Column-II and choose the CORRECT answer
| Column-I | Column-II | ||
| P. | Klinefelter syndrome | i. | Mutation in autosomal gene |
| Q. | Thalassaemia | ii. | Mutation sex chromosome linked gene |
| R. | Down syndrome | iii. | Trisomy of autosome |
| S. | Colour blindness | iv. | Trisomy of sex chromosome |
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Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Identify the correct statement from the following.
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In which of the following anemophily is NOT observed?
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Identify the disease caused by an autosomal primary non-disjunction.
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Organelle which is regarded as the powerhouse of the cell and in which oxidative reactions of the respiratory process takes place is ______
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Identify the genetic disorder m which an individual has an overall masculine development, gynaecomastia and is sterile.
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In Klinefelter syndrome, an extra chromosome is a result of non-disjunction of X-chromosome during ____________.
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Following list indicates various genetic diseases. Identify the diseases that are not caused due to single gene defect.
Huntington's chorea, alkaptonuria, Sickle cell anaemia, Down syndrome, thalassemia, Taysachs disease, Turner syndrome, cystic fibrosis, haemophi Lia, Klinefelter syndrome, albinism
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In which of the following cases ethylene (gaseous phytohormone) synthesized in large amounts by tissues?
- Ripening of fruits
- Senescence
- Cell division promoting activity
- Actively growing apices of stems and roots.
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____________ refers to self-pollination which involves two different flowers of the same plant.
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Choose the correct option which appropriately classifies the following disorders into Mendelian and chromosomal disorders:
Colour blindness, Down syndrome, Sickle cell anaemia, Turner syndrome, Thalassemia, Haemophilia, Phenylketonuria, Klinefelter syndrome.
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Identify the option that correctly represents the number of chromosomes in Down syndrome.
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All of the following are marine fish EXCEPT
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