Larvae of the silkworm ( Bombyx mori) may display surface patterns called striped and plain. Another pattern is called moricaud, in which the larva is delicately marked with lighter dark lines and dots. Crosses between true-breeding silkworm moths in the three possible combinations yield F1 generations and F2 generations (produced by inbreeding the respective F1 flies) as follows.
Parents F1 F2 Stripedx plain striped 1001 striped: 316 plain Striped x moricaud striped 725 striped : 227 moricaud Plain x moricaud moricaud 1421 moricaud : 443 plain
A. How many genes control this pattern in the larvae?
B. How many alleles does each gene have?
C. Define symbols for the alleles then write the dominance relationships among the alleles.
D. List the possible genotypes for each phenotype using the symbols assigned above: striped Plain Moricaud
Answers: 3
Biology, 21.06.2019 20:40, jaycie16
Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling
Answers: 3
Biology, 21.06.2019 22:30, maddison788
Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into
Answers: 1
Biology, 22.06.2019 02:10, sannai0415
Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems
Answers: 2
Larvae of the silkworm ( Bombyx mori) may display surface patterns called striped and plain. Another...
Social Studies, 17.01.2020 18:31
Computers and Technology, 17.01.2020 18:31