#Question id: 10633
#Unit 10. Ecological Principles
Following some characteristic feature of r selected species
A. late maturity
B. Provision of parental care
C. High mortality during early stages of life
D. large clutch size
What is the above combination is correct?
#Question id: 7116
#Unit 5. Developmental Biology
Which one statement best describes gastrulation in sea
urchins?
a) Gastrulation is initiated by invagination of the
micromeres at the vegetal pole.
b) The mouth of the pluteus larva will form from
mesomeres on the oral side of the 60-cell embryo.
c) The gut will form from the macromeres at the
16-cell stage.
d) Mesenchymal cells originating at the vegetal pole
will invaginate first during gastrulation and will form skeletal structures in
the pluteus larva.
Which of the following combination is correct?
#Question id: 24530
#Unit 11. Evolution and Behavior
The average numbers of offspring produced by three genotypes are: AA=6, Aa=3, aa=2. What is the fitness value of Aa?
#Question id: 4043
#Unit 3. Fundamental Processes
In the process of creating a trp operon mutant, the UGG codons within the leader sequence were accidentally deleted. Which of the following would be a likely observation in the transcription assays? ___
A. RNA polymerase cannot bind to the promoter.
B. The operon is permanently inhibited.
C. Attenuation would be impaired.
D. Termination would be triggered.
E. No tryptophan would be made.
#Question id: 5437
#Unit 8. Inheritance Biology
A pure line dominant plant has height of 100 cm while pure line of recessive plant has 20 cm. If one dominant gene contribution is 8 cm, what is number of QTL control plant height?