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Class 12 - Biology मॉक टेस्ट

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Class 12 Biology
In angiosperms, the phenomenon of double fertilisation involves:
A One male gamete fusing with the egg and the other male gamete fusing with the secondary nucleus
B One male gamete fusing with the secondary nucleus and the other fusing with the egg
C Both male gametes fusing with the egg
D One male gamete fusing with two egg cells
Class 12 Biology
Two genes located very close together on the same chromosome are most likely to show which pattern of inheritance in a dihybrid cross:
A Strict linkage with very few or no recombinant offspring
B Independent assortment producing a 9:3:3:1 ratio
C Sex-linked recessive inheritance pattern
D Incomplete dominance with intermediate phenotypes
NEET Biology
Which of the following pairs is correctly matched?
A Penicillium — Ascomycetes
B Rhizopus — Basidiomycetes
C Ustilago — Zygomycetes
D Spontaneous generation — Louis Pasteur
Class 11 Biology
Which component of blood is primarily responsible for clotting at sites of injury?
A Erythrocytes
B Thrombocytes (platelets)
C Neutrophils
D Lymphocytes
Class 12 Biology
Which of the following population interactions is correctly matched with its description?
A Predation — one species benefits, the other is harmed
B Commensalism — both species benefit from the interaction
C Parasitism — both species are harmed equally
D Mutualism — one species benefits, the other is unaffected
NEET Biology
C4 plants have a special adaptation to minimise photorespiration. Which of the following correctly describes the role of PEP carboxylase in C4 photosynthesis?
A PEP carboxylase fixes CO₂ into oxaloacetate in mesophyll cells because it has no affinity for O₂
B PEP carboxylase fixes O₂ into photorespiratory products in bundle sheath cells
C PEP carboxylase regenerates PEP in bundle sheath cells using ATP
D PEP carboxylase splits water to release CO₂ in bundle sheath cells
Class 12 Biology
In the Hardy-Weinberg equation p² + 2pq + q² = 1, what does the term 2pq represent?
A The frequency of homozygous dominant individuals
B The frequency of homozygous recessive individuals
C The frequency of heterozygous individuals
D The frequency of the dominant allele
NEET Biology
In vitro fertilisation (IVF) is a popular assisted reproductive technology. In the ZIFT (Zygote Intrafallopian Transfer) technique, the zygote or early embryo (up to 8 blastomeres) is transferred to which location?
A Uterus
B Fallopian tube
C Cervix
D Ovary

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