#Question id: 4765
#SCPH01 Biochemistry
The recessive mutant allele that causes cystic fibrosis is much more frequent in Caucasians population than in other world populations. Some scientists believe heterozygotes must have had a survival advantage during plagues such as cholera that occasionally swept through this population. What concept does this illustrate?
#Question id: 12913
#SCPH06 I Botany
#Question id: 4921
#SCPH12 I Genetics
Shell coiling in snail determine by genetic maternal effect. S for dextral and s for sinistral. Following cross allowed between
|
Male |
Female |
Progeny (Genotype) |
|
Dextral |
sinistral |
Dextral (K1) |
|
Dextral |
Sinistral |
Sinistral (K2) |
|
Sinistral |
sinistral |
Dextral (K3) |
|
Dextral |
Dextral |
Sinistral (K4) |
Which of the following progeny not have SS genotype?
#Question id: 9203
#SCPH06 I Botany
The human impact that scientists determined has caused the most extinctions on record is ________, and beyond further losses from this impact, the other impact with the largest potential to cause future extinctions is ________.
#Question id: 5536
#I Life Science/ Life Sciences Group – I-V
Which of the following is not related with the spot of invagination during gastrulation?