Recessive alleles seem to vanish in some generations and reappear in later generations because: a. They cannot be expressed in males

b. They are masked by a dominant allele

c. They cannot be expressed in females

d. They cannot be expressed in successive generations

e. They are lost by mutation

Football players often sustain lateral blows to the extended knee. which of the ligaments is (are) damaged as a result? a. suprapatellar b. oblique popliteal and extracapsular ligament c. medial collateral, medial meniscus, and anterior cruciate d. arcuate popliteal and the posterior cruciate

What type of specimens where you able to see under each of the microscopes in the microscope activity

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.