Women with PKU who eat a normal diet during pregnancy will have children with ____
a. only a 25% chance of developing PKU
b. intellectual disability only if the child's phenotype is homozygous recessive
c. intellectual disability only if the child's phenotype is heterozygous
d. intellectual disability regardless of the child's genotype
e. no greater chance of having PKU than if she ate a special PKU diet
d
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Quality control from commercially prepared media includes all of the following except:
a. receipt and verification of storage or transportation conditions. b. visual inspection for discoloration or con-tamination. c. pH the media using litmus paper. d. verification of lot numbers and expiration dates.
The first haploid structure in the life cycle of a
plant is the
a. zygote. b. gamete. c. gametophyte. d. spore. e. sporophyte
A theory is an integrated set of hypotheses that explains a broad set of observations
Indicate whether the statement is true or false
It is a fact that enzymes are highly specific and will only catalyze one or a few reactions. Can you think of a benefit
that is derived from such specificity? (i.e., What would happen if most biochemical reactions were catalyzed by the same enzyme?) What will be an ideal response?