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Q. Show the Embryological Evidence?
Embryology is the study of the successive stages of sporogencsis , gametogenesis and the growth and development of the embryo. The number of nuclei in the pollen grains at the time of pollen dispersal is either two or three. Double fertilisation is an example of embryological unity throughout the angiosperms. Based on the number of cotyledons, monocotyledons are separated from dicotyledons. The binucleate pollen is derived. Embryology has had systematic significance in the grass family, where with several other characters it has been used to revise the family's classification. In animals the embryological evidence is of great significance, e.g. the Anopheles maculipennis complex is broken into a number of sibling species on the basis of their egg structure. In Dacus oleae and ceratitis capitata.(fruit flies) the whole eggs are separated on the basis of the character of anterior pole and the whole classification of white flies is primarily based on the structure of their pupae.
Achondroplasia is an autosomal dominant disorder associated with a gene on chromosome 4. Sickle cell anemia is due to a gene on chromosome 11. A man and a woman with achondroplasia
wine turns sour beause of the action of which bacteria? aerobic or anerobic?
Soaking Soaking is an another inexpensive processing method, which does not require much technical know how, is commonly practiced for improving the palatability of chaffed cro
Microtubule assembly: A) generally originates in the centrosome. B) Occurs only during mitosis. C) Occurs randomly throughout the cell. D) Is regulated by myosin. E) Is inhibited d
A haploid cell contains: A.one half of a complete set of chromosomes B.several complete sets of chromosomes C.the correct number of chromosomes D.two complete sets of chromosomes E
Illustrate the techniques of neurology A long-standing technique in neurology has been observed the effects on behaviour of lesions (cutting) or ablation (removal) of nerve tis
a) Water demands vary among communities. Discuss some of the factors affecting water uses. b) A coastal town has a resident population of 8000 people during the winter months
Q. Objectives of taxonomy? Plants and animals both have a great significance and unparalleled impact on human life. Most of our needs are fulfilled with plants such as foodstuf
Question 1. State the basic properties of light. Discuss the special features of ultra-microscopy and phase contrast microscopy 2. What are ultrasonic waves? Explain the dif
If a lipid bilayer does not form in a test tube of phospholipids in a liquid solvent and instead the heads join together in a circular pattern, the most likely explanation is: a
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