Individuals can prevent osteoporosis by including sufficient supplies of vitamin C and calcium in their diets and maintaining a consistent exercise program

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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The eyes of many deep-sea fishes are tubular

Indicate whether the statement is true or false

Biology & Microbiology

In Drosophila melanogaster, vestigial wings are caused by a recessive allele of a gene that is linked to a gene with a recessive allele that causes black body color

Morgan crossed black-bodied, normal-winged females and gray-bodied, vestigial-winged males. The F1 were all gray bodied, normal winged. The F1 females were crossed to homozygous recessive males to produce testcross progeny. Morgan calculated the map distance to be 17 map units. Which of the following is correct about the testcross progeny? A) black-bodied, normal-winged flies = 17% of the total B) black-bodied, normal-winged flies PLUS gray-bodied, vestigial-winged flies = 17% of the total C) gray-bodied, normal-winged flies PLUS black-bodied, vestigial-winged flies = 17% of the total D) black-bodied, vestigial-winged flies = 17% of the total

Biology & Microbiology

Which of the following statements about the Km is NOT true?

a) it is dependent on substrate concentration b) it is numerically equal to the substrate concentration when the reaction velocity is one-half of Vmax. c) it is independent of enzyme concentration d) it is constant for a given enzyme

Biology & Microbiology

Describe the double-strand break model of homologous recombination

What will be an ideal response?

Biology & Microbiology