Sperm and egg fuse to form a diploid fertilized egg, called a ________
Fill in the blank(s) with correct word
zygote
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Which of the following statements about regulation of the lac operon is true?
A. When glucose is present, gene expression is activated by lactose. B. The amount of glucose in the growth medium does not affect the level of gene expression activated by lactose. C. The binding of the Lac repressor to the operator is not affected by the presence of glucose. D. Gene expression is high when the Lac repressor is not bound to the operator and glucose is available.
In the human male, genotype and phenotype associated with the genes on the X chromosome are determined by the one X chromosome he inherits from his mother
Indicate whether the statement is true or false
Phenetics is the strictest of the systematicists.
a. true b. false
The distances between gene loci measured in terms of the frequency of recombination is indicated by a genetic ________.
A. profile B. map C. clone D. karyotype E. pedigree