For the Week ending 05/04/12
Directions: Choose the word that matches with the definition and appropriately fits into the blank space in the sentence.
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Normal complement of pairs of chromosomes in a somatic cell; containing two complete sets of chromosomes, one from each parent
Crucially, the finished sequence must cover at least 98 percent of all twenty-three pairs of chromosomes that is, the _______ genome at a stringent accuracy of 99.999 percent or just 1 error per 100,000 bases. |
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one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome
An _______ is any of the variants of a gene that takes more than one form; such genes are known as polymorphisms. |
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reproduction from an ovum without fertilization, esp. as a normal process in some invertebrates and lower plants
Virgin birth, known to biologists as _______ from the Greek, "parthen" meaning virgin or maiden and "genesis," beginning, occurs when an egg develops spontaneously without fertilization. |
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a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth
In the simplest form of reproduction, one cell cutting itself in two to make two new ones, known as _______, the change begins in the nucleus, or kernel. |
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a type of cell division that results in four daughter cells each with half the number of chromosomes of the parent cell, as in the production of gametes and plant spores
My own mnemonic system depends on the fact that the word _______ has been "reduced," from mitosis, to the extent of not containing the letter t. |