#Question id: 7202
#Unit 5. Developmental Biology
Identify
the correct match of the modes of regeneration (column I) with their definition
(column II)
|
Column I |
Column II |
|
A. Stem
cell-mediated regeneration |
i. Through
the re-patterning of existing tissues. There is often little new growth but
rather cell death and a change in cell type (i.e., transdifferentiation into
a different cell fate). This results in a rescaling of the whole organism as
well as regeneration of the missing part. |
|
B. Epimorphosis |
ii. The
differentiated cells divide but maintain their differentiated functions. The
new cells do not come from stem cells, nor do they come from the
dedifferentiation of adult cells. |
|
C. Morphallaxis |
iii. Adult
structures can undergo dedifferentiation to form a relatively
undifferentiated mass of cells (a blastema) that then redifferentiates during
morphogenesis of the new structure. |
|
D. Compensatory
regeneration |
iv. Stem
cells allow an organism to regrow certain organs or tissues that have been
lost. |
#Question id: 4275
#Unit 3. Fundamental Processes
CCA-adding enzymes add a specific sequence without a template because
#Question id: 5798
#Unit 8. Inheritance Biology
Mutations:
#Question id: 4861
#Unit 8. Inheritance Biology
Two character X and Y, both follow law of dominance due to 3:1 F2 phenotypic ratio monohybrid cross separately. If carry out dihybrid selfing cross for heterozygous genotype for both character does not follow law of independence assortment in normal environmental condition due to these two loci for character are linked at 20 map unit as cis configuration. Which of the following proportional genotype that homozygous for all loci in F2 generation?
#Question id: 2720
#Unit 2. Cellular Organization
In one strand of a double stranded DNA the rate of occurrence of A is 3 times C in consecutive 10 bases. So how many G will be there in 100 base pairs of a DNA duplex? [Consider G=T in one strand].