Answer the following statements true (T) or false (F)
1. Somatic cell mutations are heritable.
2. Mutations can produce a polypeptide with increased function.
3. The timing of a mutation during development has negligible effects on the severity of the genetic defect.
4. Larger genes are usually more likely to incur a mutation than smaller genes.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
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Whether an organism is classified as a photoheterotroph or a photoautotroph depends on its
A) energy source. B) carbon source. C) oxygen requirements. D) carbon and energy sources.
In DNA replication, each individual parent strand acts as a _____ for the synthesis of a _____
A. template strand; duplicate strand B. duplicate strand; daughter strand C. daughter strand; template strand D. template strand; daughter strand E. daughter strand; duplicate strand
An insect such as a moth or cricket detects sound
a. though specialized tympanic membranes located near the head. b. through a thinned region of the exoskeleton. c. through general mechanoreceptors on its skin. d. by using a specialized organ that measures the frequency of vibration of the surrounding air particles. e. through a series of mechanoreceptors arranged in a lateral line.
Which statement is true?
a. Gene mutations never occur independently of each other. b. Gene mutations are very common. c. Ionizing radiation is caused by chromosomal damage. d. Mutations are random. e. The loci of gene mutations can be predicted.