#Question id: 7287
#Unit 5. Developmental Biology
Following
statements are regarding to the the floral quartet model and the underlying
ABCDE model of organ identity determination in Arabidopsis thaliana.
A.
Five floral organ identities (sepals, petals, stamens, carpels, and ovules) are
specified by the formation of floral organ-specific tetrameric complexes of
MADS-domain transcription factors that bind to two nearby enhancer elements,
forming a DNA loop in between.
B.
A complex of two class A proteins (APETALA 1) and two class E proteins (SEPALLATA) determines petal identity.
C.
A complex of one class A protein, one class E protein, and one of each of the
class B proteins (APETALA 3 and PISTILLATA) determines sepal identity.
D. A complex of one class E protein, two class B proteins, and one class C protein (AGAMOUS) determines stamen identity, while a complex of two class E proteins and two class C proteins determines carpel identity.D. A complex of one class E protein, two class B proteins, and one class C protein (AGAMOUS) determines stamen identity, while a complex of two class E proteins and two class C proteins determines carpel identity.
E.
A complex of one class E protein, one class C protein, and one of each of the
class D proteins (SHATTERPROOF and SEEDSTICK) controls ovule identity.
Which of the following combination are correct?
#Question id: 11621
#Unit 8. Inheritance Biology
A genetic trait becomes more strongly expressed or is expressed at an earlier age as it is passed from generation to generation, this is an example of
#Question id: 12376
#Unit 10. Ecological Principles
#Question id: 426
#Unit 1. Molecules and their Interaction Relevant to Biology
Which statement is not true about catabolic pathways?
#Question id: 11662
#Unit 10. Ecological Principles
During the successional process generation of community through the short time period successional process as well as long time successional process;
a) During short time period evolve pioneer community from the climax community
b) During short time period generation of the microbial community
c) During long time period generation of end community (forest) from the pioneer community
d) During long time period generation of the microbial community