TLS Online TPP Program

#Question id: 12640


Plant species produce a which type of  defensive proteins that bind to carbohydrates or carbohydrate-containing proteins. After being ingested by an herbivore, that bind to the epithelial cells lining the digestive tract and interfere with nutrient absorption

#Unit 10. Ecological Principles
  1. α-amylase inhibitors
  2. Lectins
  3. proteinase inhibitors
  4. oxylipins
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TLS Online TPP Program

#Question id: 11909

#Unit 8. Inheritance Biology

In the birds, butterflies and some reptiles, sex is still chromosomal, but the male that possesses two identical sex chromosome while the female has two different sex chromosome,  in this case which one is determining  sex?

TLS Online TPP Program

#Question id: 12139

#Unit 8. Inheritance Biology

If the plant height is 40cm(maximum) and 20cm(minimum)  then what will be the height of AaBb , AABb,  Aabb plant and  what will be the one dominant polygene contribution?

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, 
D) environmental variance=0.8,  
E) genetic−environmental interaction variance=0.3