TLS Online TPP Program

#Id: 5987


Green Earth hypothesis Which stated that since the Earth appears “green,” and plants are common, herbivores must have little impact on plant abundance.
They suggested that herbivores must therefore be limited by their predators.



#Unit 10. Ecological Principles #Ecosystem #Part B Pointers
More Pointers
TLS Online TPP Program

#Id: 6275

#Unit 8. Inheritance Biology

Duplicate Dominant gene interaction (15:1) When dominant allele of both gene loci produce  the same phenotype without cumulative effect.



TLS Online TPP Program

#Id: 6276

#Unit 8. Inheritance Biology

Duplicate gene interaction occurs in shepherds purse plant. 

op                                           tringular

                 A

                                                                                                     Tringular         

Top                                    tringular   

TLS Online TPP Program

#Id: 6277

#Unit 8. Inheritance Biology

Polymeric Gene interaction (9:6:1) The combination of two dominant alleles that intensifies the phenotype or creates a median variation. 

Long                                          circular

                        A                                                                     

                                                                                           Disc shape

                       

Long                                                    circular

                         B  


















 


TLS Online TPP Program

#Id: 6326

#Unit 8. Inheritance Biology

Sex determination, sex linkage, sex limited, and sex influenced characters) & Extra chromosomal inheritance

1. Sex-determining mechanisms include,
1. Chromosomal
2. Genic
3. Environmental



TLS Online TPP Program

#Id: 6327

#Unit 8. Inheritance Biology


TLS Online TPP Program

#Id: 6328

#Unit 8. Inheritance Biology

XX-XO SEX DETERMINATION

The mechanism of sex determination in the grasshoppers studied by McClung