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Theory of Epigenesis
(i) It was proposed by C.F. Wolff & supported by Von Baer.
(ii) Wolff proposed that germ cells contain definite but undifferentiated substances which, after fertilization becomes organized into various complex body organs (New factors) which form the adult. This idea was referred to as epigenesis.
(iii) The theory of epigenesis is similar to our present day gene concept of heredity.
(iv) Wolff rejected the preformation theory by providing detailed structure of ovum and sperm in chick.
(v) Epigenesis term was coined by William Harvey.
Select all that are true or correct regarding a buffer: alternately donating and accepting ions a set of chemicals that work together to resist pH change often a weak acid or base
How Buffer Solution Can Be Prepared? A buffer solution can be prepared to have a desired value of pH by controlling the amount of acid and its salt in case of acidic buffer and
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Give a detailed description of stereoblastula, please ?#
Q. Why can the amnion also be considered an adaptation to terrestrial life? The amnion is as well an adaptation to dry land since one of its functions is to prevent desiccation
Which of the following occur in response to an increase in the length of the right knee extensors in response to a quick tap applied to the right patellar tendon? An increase in t
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