#Question id: 1132
#Unit 4. Cell Communication and Cell Signaling
Which of the following become(s) active as a kinase when an activation lip residue is phosphorylated?
a. EpoR b. JAK c. STAT d. Ras e. MAPK
#Question id: 3288
#Unit 11. Evolution and Behavior
Migration causes changes in the allelic frequency of a population by introducing alleles from other populations. The magnitude of change due to migration depends on
#Question id: 13123
#Unit 2. Cellular Organization
#Question id: 4742
#Unit 8. Inheritance Biology
In birds, sex is determined by a ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What would be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?
#Question id: 12169
#Unit 8. Inheritance Biology