RecA protein provides the functional link between DNA damage and the SOS response by displacing the LexA protein from its operator sites on the SOS genes.  RecA does so by:

TLS Online TPP Program

#Question id: 12699

#Unit 7. System Physiology – Animal

The following test results were obtained: urine flow rate = 2.0 ml/min; urine inulin concentration = 60 mg/ml; plasma inulin concentration = 2 mg/ml; urine potassium concentration = 20 μmol/ml; plasma potassium concentration = 4.0 μmol/ml; urine osmolarity = 150 mOsm/L; and plasma osmolarity = 300 mOsm/L. What is the free water clearance rate?

TLS Online TPP Program

#Question id: 12700

#Unit 7. System Physiology – Animal

A young man is found comatose, having taking an unknown number of sleeping pills an unknown time before. An arterial blood sample yields the following values: pH = 7.02, HCO3− = 14 mEq/L, and PCO2 = 68 mm Hg. This patient’s acid–base status is most accurately described as

TLS Online TPP Program

#Question id: 12701

#Unit 7. System Physiology – Animal

In chronic respiratory acidosis with partial renal compensation, you would expect to find the following changes, compared to normal:___ urinary excretion of NH4+; ______ plasma HCO3− concentration; and _____ urine pH.

TLS Online TPP Program

#Question id: 12702

#Unit 8. Inheritance Biology

Some given characteristics features of Cytoplasmic inheritance, which of the following statements are not follow the inheritance pattern;

a) Cytoplasmic gene and their trait present in both male and female

b) Reciprocal cross results aren’t change

c) Exhibit extensive phenotypic variation

d) Reciprocal cross results are change

e) Mendel’s principle of segregation and independent assortment are follow

TLS Online TPP Program

#Question id: 12703

#Unit 8. Inheritance Biology

In the plants, due to mutation in the mitochondrial genome causing cytoplasmic male sterility can be influenced by the nuclear gene (Rf),  which is dominant over the cytoplasmic mitochondrial genome. If a male sterile plant  is pollinated by the fertile male plant with homozygous (Rf)condition, the progeny obtained in F1 will have

TLS Online TPP Program

#Question id: 12704

#Unit 8. Inheritance Biology

Cytoplasmic male sterility (CMS) in plants is caused by mutation in the mitochondrial genome. CMS can be restored by a nuclear gene, restorer of fertility (Rf), which is a dominant character.