Practice Questions

TLS Online TPP Program

#Question id: 8696

There is some evidence that reptiles called cynodonts may have had whisker-like hairs around their mouths. If true, then hair is a shared ________.

#Unit 9. Diversity of Life Forms

derived character of mammals, even if cynodonts continue to be classified as reptiles
derived character of all vertebrates and not of the mammal clade
ancestral character of the all vertebrates, but only if cynodonts are reclassified as mammals
derived character of mammals, but only if cynodonts are reclassified as mammals

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TLS Online TPP Program

#Question id: 12160

#Unit 9. Diversity of Life Forms

Which of these was not derived from an ancestral alpha proteobacterium?

TLS Online TPP Program

#Question id: 12161

#Unit 8. Inheritance Biology

If a cross is made between two plant heights 46cm and 10cm. The f2 Genotype has been shown;

I) AABBCC - 2) AABBCc – 3) AABbCc – 4) AaBbCc– 5) AaBbcc – 6) Aabbcc – 7) aabbcc –

Find out the

i) phenotypic values of the given character

ii) determining the no of polygenes involves and

iii) what will be the no of QTL?

TLS Online TPP Program

#Question id: 12162

#Unit 8. Inheritance Biology

Nilsson-Ehle’s cross obtained homozygous varieties of wheat that differed in color, he crossed a variety of wheat that possessed white kernels with a variety that possessed red kernels and obtained the following results:

The following conclusions are made from the results obtained;

TLS Online TPP Program

#Question id: 12163

#Unit 8. Inheritance Biology

A cross is made between the two pure line homozygous plant their height is 6cm and 2cm. the F1 progeny shows 6 cm height. the variations takes place in F2 progeny , which were made by

TLS Online TPP Program

#Question id: 12164

#Unit 8. Inheritance Biology

What is the value of broad sense and narrow sense heritability respectively , if the given values of;

A) dominance genetic variance =0.4 ,

B) genic interaction variance =0.3,

C) additive genetic variance =0.6,