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List the four phases of meiosis I, and briefly explain what occurs during each phase
Prophase I: DNA coils into chromosomes, the nucleolus and nuclear envelope disappear, the mitotic spindle forms, and synapsis and crossing-over happen. Metaphase I: the tetrads line up randomly along with the midline of the cell, and spindle fibers attach to the centromere of every homologue. Anaphase I: the homologues move toward opposite poles of the cell. Telophase I: the chromosomes reach the opposite ends of the cell, and cytokinesis starts.
How is reproduction done in beings of the class Reptilia? These beings reproduce sexually by internal fecundation by means of copulation among male and female individuals. They
RECIPROCAL CROSSES Similar results were obtained with reciprocal crosses also. A reciprocal crosses involves the same traits but carried by sexes opposite to those in the origi
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Q. What are the anatomical relationships between the organs of the female reproductive system from the external vulva to the ovaries? The external female genitalia are called t
Nuclease is an enzyme which degrades the nucleic acids. A nuclease can be DNA-specific (a DNase), RNA-specific (RNase) or non-specific. It might act only on single stranded nuclei
What is Carbon Cycle explain briefly? Life on earth is mainly carbon-based. Most of the material substances that make up living organisms consist of organic compounds of carbon
Define Classification of Chromatography - Basic Separation Technique Chromatography can be classified depending upon: Physiochemical principles/factors, The techniqu
Why isn't the cooking of vitamin C-containing foods appropriate for vitamin C supply? To obtain vitamin C, for example, from an orange dessert, the vitamin-containing food cann
Which of the below are skin receptors in humans which are sensitive to heat? Are they: a) End organs of Krause b) Meissner's corpuscles c) End organs of Ruffini d)
Great importance is being given to life style modifications because of definite benefits observed in patients who follow this. Life style changes have advantages not only in the co
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