plant breeding and genetics MCQs – Page 7

Practise focused plant breeding and genetics questions with marked answers for exam preparation and subject revision.

plant breeding and genetics Mcqs
121. Self incompatibility in which the genes express in the style is known as__________________?
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A. Styler SL

B. Diallelic SL

C. Ovarian SL

D. Polyallelic SL

122. The term micro and macro environment was given by___________________?
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A. Robinson (1948)

B. Perkins (1971)

C. Comstock and Moll (1963)

D. Lemer (1954)

123. Dispersal of seeds by parachute mechanism is present in__________________?
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A. Cotton

B. Sorghum

C. Tomato

D. Onion

124. Drought tolerance is associated with ____________________?
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A. Small waxy and thick leaves

B. Sunken, small and less stomata

C. All of the above

D. Deep root system

125. Global gene bank of barley is located at__________________?
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A. ICARDA

B. Florida

C. CIP

D. ICRISAT

126. In the long term storage, germplasm can be stored upto____________________?
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A. 100 years

B. 200 years

C. 150 years

D. 1250 years

127. Global gene pool rice is maintained at_________________?
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A. China

B. Mexico

C. None of the above

D. IRRI Philippines
128. Diocious plant is____________________?
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A. Datepalm

B. Hemp

C. All the above

D. Papaya

129. In line x tester cross each male is crossed with____________________?
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A. Few females in a set

B. Different sets of females

C. All the above

D. Same sets of females
130. Gene pool consist of____________________?
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A. All the above

B. Modern cultivars

C. Advanced breeding materials

D. Land race

131. Ratio of genotypic covariance to the phenotypic covariance is____________________?
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A. Heritability (b.s)

B. Genetic gain

C. Genetic advance

D. Co-heritability
132. Germplasm collected within the country is known as____________________?
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A. Working collection

B. Exotic collection

C. Active collection

D. Indigenous collection
133. In rice, brown plant hopper has no preference for___________________?
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A. Low aspergine

B. Purple stigma

C. Red pericarp

D. All the above
134. Which generate variability_________________?
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A. None of the above

B. Peleiotropy

C. Mitosis

D. Meiosis
135. Vertical resistance is also known as_________________?
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A. Oligogenic

B. All the above

C. Race specific

D. Qualitative

136. Single seed descent method was first suggested by_________________?
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A. Brim (1966)

B. Simmonds (1979)

C. Goulden (1939)

D. Giber (1953)

137. International institute for Tropical Agriculture is located at______________________?
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A. Syria

B. Columbia

C. Nigeria

D. Mexico

138. Protein content in barely is higher than____________________?
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A. maize

B. None of the above

C. wheat

D. rice

139. Disease and insect resistance is governed by________________?
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A. Polygenes

B. All the above

C. Plasma genes

D. Oligogenes

140. germplasm which is meant for short term storage (3 to 5 years) is known as___________________?
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A. None of the above

B. Working collection

C. Exotic collection

D. Indigenous collection