Which part of the light microscope controls the intensity of light entering the viewing area?

#Question id: 10511

#SCPH06 I Botany

Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?

#Question id: 4598

#SCPH28 | Zoology

Fossils of Thrinaxodon, a species that lived during the Triassic period, have been found in both South Africa and Antarctica. Thrinaxodon had a reptile-like skeleton and laid eggs, but small depressions on the front of its skull suggest it had whiskers and, therefore, fur. Thrinaxodon may have been warm-blooded. The fossils of Thrinaxodon are consistent with the hypothesis that ________.

#Question id: 8703

#SCPH06 I Botany

In a comparison of birds and mammals, having four limbs is ________.

#Question id: 7293

#SCPH01 Biochemistry

In agamous mutant (flower within flower phenotype) which of the following statements is valid?

#Question id: 2957

#SCPH01 Biochemistry

A mutation in the gene that codes for p53 can result in-

A. loss of an inhibitor protein, p21.

B. loss of a transcription factor.

C. uncontrolled cell growth and cancer.

Which of the following is correct?