Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Cytoplasmic Reorganisation
Meiosis is also associated with major reorganisation of the cytoplasm of MMCs and microspores. Microspore mother cell shows high metabolic activity. As meiosis is initiated, the synthetic activity of the cell is reduced. The rate of synthesis of RNA and proteins is drastically reduced. The cell goes through dedifferentiation. The ribosome population of the cell comes down significantly. Even the mitochondria and plastids undergo dedifferentiation, that is, they lose most of the internal membrane system and become spherical bag-like structures. However, small pockets of cytoplasm (consisting 10-20 percent of the total cytoplasm) gets enclosed by membranes and these pockets do not undergo the reorganisation that occurs in the remaining part-of the cytoplasm. Towards the end of meiosis, the microspores restore the synthetic activity. The synthesis of RNA and proteins is initiated, the ribosome population of the cell is restored and the mitochondria and plastids re-differentiate to their normal configuration with internal membrane system and regain their original shape.
What are the differences between vertebrates and the other chordates? Vertebrates are dissimilar because they have a spinal column (vertebral column). In these animals the noto
Craninal nerves: Cranial nerves take their origin from different areas of brain Some of them are sensory, some are motor and a few are mixed nerves. There are 12 pair
What is the role of Naupliar eye? The unique eye found in larval stage of the crustacean life cycle. This single compound eye is located medially, and with exception of copepod
Suppose that a portion of double-stranded DNA in the middle of a large gene is being transcribed by an RNA polymerase. As the polymerase moves through the sequence of six bases sho
Define Interaction of vitamin c with Ascorbic acid and Leucine? Ascorbic acid : The biologically active form, ascorbate, is a cofactor or co- substrate for eight isolated enz
Describe Class Echinoidea in animal kingdom? Sand dollars and sea urchins either have flattened disc-like bodies, or are somewhat spherical. While they lack the typical five-ar
Explain Clinical analysis Clinical analysis: This analysis includes a complete physical examination and a medical history. The physical examination begins with the patient's
Explain the Toxicity of Vitamin D? The adverse effects of high vitamin D intakes include hypercalciuria (excessive urinary calcium excretion) and hypercalcaemia (high concentr
Which are the growth tissues of plants? How do they categorize and where can they be found? The growth tissues of the plants are the meristems. Meristems are the tissues that m
STRUCTUR E OF PROTEINS Proteins which are mixed polymers of amino acids can have up to four structural levels - Primary, Secondary, Tertiary, Quaternary 1 . PRIMA
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd