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TLS Online TPP Program

#Question id: 7139

If apoptosis in the developing limb were blocked, what feature of a normal limb would not form?

#Unit 5. Developmental Biology
  1. The bones and muscles would not form.
  2. The proximo-distal patterning would not occur normally.
  3. All the bones would form as the same structure.
  4. The digits would be connected by webbing, and would not be separated.
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TLS Online TPP Program

#Question id: 3272

#Unit 11. Evolution and Behavior

Calculate the frequencies of the XO and X+ alleles respectively for this population.
TLS Online TPP Program

#Question id: 24555

#Unit 4. Cell Communication and Cell Signaling

Naturally occurring passive form of immunity is
a) maternal IgG crosses the placenta
b) maternal IgE crosses the placenta
c) maternal IgA present in breast milk
d) Maternal IgM present in breast milk
TLS Online TPP Program

#Question id: 7274

#Unit 5. Developmental Biology

The following experiment is designed to study the role of several hormones in the regulation of metamorphosis in frogs.

Group #

Treatment

Days to Metamorphosis

1

Saline

30

2

Prolactin

> 100

3

TSH

15

4

Thyroxine

10

5

Corticosterone

30

6

Thyroxine + Corticosterone

5

7

Prolactin + TSH

30

8

Thyroid gland removed

> 100

 If the thyroid gland were removed from the tadpoles in Group 3, metamorphosis would
TLS Online TPP Program

#Question id: 17285

#Unit 13. Methods in Biology

If the arithmetic mean of the data given below is 28, 
The median of the series is  
TLS Online TPP Program

#Question id: 28074

#Unit 6. System Physiology – Plant

P680 & P700 exist in various state, and each state have their own different properties 
(a) P680    -   absorbs light  
(b) P680+   -     strongest oxidant 
(c) P680 +   -     strongest reductant 
(d) P700   -    absorbs light 
(e) P700* -     strongest reductant 
Which of the following is correct