Which level of organization is required for all others to form?
A. cell
B. tissue
C. organ
D. organism
E. population
A. cell
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Identify the correct comparison between the human X and Y chromosomes.
A. Only the X chromosome is paired with a homologous match in human females. B. The X chromosome is larger than the Y chromosome. C. Only the Y chromosome is always found without a homologous match. D. Although both are sex chromosomes, they do not share the same genes. E. All of the answer choices are correct.
When going from a seated to standing position, the knee undergoes ____
a. flexion b. extension c. abduction d. adduction e. pronation
Which of the following is not a reason why Neurospora is an ideal organism to study the effects of
genetic mutations? a. Neurospora is easy to grow. b. Neurospora grows as a haploid organism. c. Neurospora manufactures all its necessary molecules when grown on a minimal medium. d. A mutant Neurospora strain that cannot make a particular amino acid can still grow if that amino acid is added to the growth medium. e. Neurospora contains homologous chromosomes that are easily viewed with a light microscope
One difference between a gene mutation and a chromosomal mutation is that
a. A gene mutation affects the DNA of more genes than a chromosomal mutation b. A gene mutation can involve a insertion or deletion, but cannot result in a frameshift c. A chromosomal mutation can change the number of chromosomes in a cell d. A chromosomal mutation is more likely to be passed on to offspring or daughter cells