AP Biology Grid-Ins Practice Test 1

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Question 6 questions

Time 9 minutes

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1. An experiment was conducted to observe the light-absorbing properties of chlorophylls and carotenoids using a spectrophotometer. The pigments were first extracted and dissolved in a solution. They were then illuminated with pure light of different wavelengths to detect which wavelengths were absorbed by the solution. The results are presented in the absorption spectrum below.

At approximately what wavelength does chlorophyll a maximally absorb light?

2. A woman with blood genotype IAi and a man with blood genotype IBi have two children, both type AB. What is the probability that a third child will be blood type AB?

3. The trophic level efficiency of large herbivores such as elks is frequently only about 5 percent. In tons, what volume of plants would be required to maintain 24,000 lbs of elk?

4. If the genotype frequencies of an insect population are AA = 0.49, Aa = 0.42, and aa = 0.09, what is the gene frequency of the recessive allele?

5. Based on the pedigree above, what is the probability that a male child born to individuals 6 and 7 will be color-blind?

6. The loss of water by evaporation from the leaf openings is known as transpiration. The transpiration rates of various plants are shown below.

How many liters of water per week are lost by a coconut palm?