#Question id: 7179
#Unit 5. Developmental Biology
Blocking BMP(BMP2, BMP4, BMP7) signaling by infecting progress zone cells with retroviruses carrying dominant negative BMP receptors. Which of the following results are found?
#Question id: 5445
#Unit 8. Inheritance Biology
A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 90 inches in height. What is percent of F2 progeny that is resemble with either 120 cm or 60 cm height?
#Question id: 3350
#Unit 11. Evolution and Behavior
In a given population, 128 out of every 400 people has a carrier for recessive allele b that caused cancer in homozygous condition, Assuming the population is in Hardy- Weinberg equilibrium, which of the following is the expected frequency of allele B and b in population respectively?
#Question id: 2878
#Unit 2. Cellular Organization
Match the following types of Transposable elements with their respective types and examples found in various organisms.
|
Transposon |
Type |
Example |
|
1. F and G element |
a. DNA-mediated |
i. Drosophila |
|
2. Ty elements |
b. RNA-mediated |
ii. Humans |
|
3. Alu sequences |
c. Poly-A retrotransposons |
iii. Yeast |
|
4. P-elements |
d. Virus-like retrotransposons |
iv. Mammals |
#Question id: 2634
#Unit 2. Cellular Organization
Tryptophan, the end-product of the enzymes encoded by the trp operon, therefore acts as a co-repressor and inhibits its own synthesis through: