TRAIT SPECIESABCDE111011210010310011411111511111600010 The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 2 and 4
B. 4 and 5
C. 3 and 4
D. 1 and 4
E. 2 and 5
Answer: B
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Which of the following is not true of genomic and cDNA libraries?
A. Genomic libraries contain fragments of genomic DNA that are generated by partial digests with restriction enzymes. B. cDNA libraries contain cDNAs made from mRNA. C. cDNA libraries only contain sequences from transcribed genes. D. Genes represented in cDNA libraries contain control sequences that direct transcription. E. Genomic libraries usually contain large fragments and are likely to be constructed in YAC or BAC vectors.
The following represents a portion of one half of a DNA strand: ATTCG. What would be the
complementary sequence to this?
a. ATTCG b. TAAGC c. AUUCG d. UAAGC
In radishes, red and white are the pure-breeding
colors, and long and round are the pure-breeding shapes, while the hybrids are purple and oval. The cross of a red oval with a purple oval will produce all BUT which of the following phenotypes? a. white and long b. purple and oval c. red and oval d. purple and long e. red and long
After taking your biology exam, you return to your car only to find that you had left the lights on and now the car battery is dead. Your friend offers to jump-start your car, but when you go to hook up the jumper cables you find that the battery terminals are covered with corrosion due to battery acid condensation. Based off your knowledge, what substance could be used to clean the corrosion?
A. baking soda (pH of 9) B. coffee (pH of 5) C. water (pH of 7) D. vinegar (pH of 3)