Search SchoolNGR

Biology Past Questions and Answers

Waec Biology Questions

Question 296:

One of the major criticisms against ‘Mendelian laws is that they do not recognize that

SchoolNGR Classroom

A One trait is often controlled by many pairs of genes
B Single factor inheritance is never a reality
C Complete dominance is always possible
D Incomplete dominance is not possible
E Hybrids exist in living organisms

View Answer & Explanation

Question 297:

Identical twins inherit their genes from

SchoolNGR Classroom

A The same ovum and different sperms
B The same sperm and different ova
C Different sperms and many ova
D The same ovum and the same sperm
E Many ova and many sperms

View Answer & Explanation

Question 298:

The offspring produced when pure strains interbreed is described as

SchoolNGR Classroom

A Dominance
B Phenotype
C Allele
D Genotype
E Hybrid

View Answer & Explanation

Question 299:

Which of the following diseases or disorders can be prevented by the application of the knowledge of
heredity through marriage counselling?

SchoolNGR Classroom

A Sickle cell anaemia
B Haemophilia
C Diabetes mellitus
D Colour blindness
E River blindness

View Answer & Explanation

Question 300:

Study the genetic cross above showing the inheritance of blood groups from the cross above which of the following F offspring does not
belong to the father?

SchoolNGR Classroom

A AA
B AO
C OB
D OO
E AB

View Answer & Explanation

Stay Updated

Follow us on:

Subjects