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View Article  Biological Classifications
Which of the following biological groups has the fewest members:

(1) Species

(2) Genus

(3) Family

(4) Class
View Article  Genetic Info
What structures carry the most genetic information for a leaf cell:

(1) chromosomes

(2) ribosomes

(3) centrioles

(4)  chloroplasts

More resources

BOTW Plants
Berkeley - Plant Photos
View Article  Karyotypes
A karyotype would be least useful in determining whether a person had:

(1) a missing 23rd chromosome

(2) more than one X chromosome

(3) a recessive gene on the Y chromosome

(4) an extra copy of chromosome 21