PisumSativum is self-pollinated in crops. Why this can be a problem when used for experiments like those conducted by Mendel?

1.	Self-pollinated plants tend to be weaker and require more care.
2.	Self-pollinated plants are not able to produce viable seeds due to inbreeding.
3.	Stamens must be removed from self-pollinated plants to control fertilization.
4.	Pistils of self-pollinated plants are unable to accept pollen from other plants.

What would be true for study of karyotype of an organism, for example, humans?
1. Microscopic analysis could allow identification of unusual cellular structures.
2. An individual could be matched to a forensic sample based on identical karyotypes.
3. A specific gene which causes a genetic disorder could be identified.
4. Genetic disorders caused by chromosomal rearrangements could be diagnosed.

Identify the incorrect statement regarding a sex limited trait:
1. This term refers to a trait controlled by a gene located on the X or Y chromosomes.
2. This is a trait that occurs more frequently in one sex than another.
3. This is an extreme example of a sex influenced trait.
4. This trait is likely to be a secondary sex characteristic.

What is the essential difference between chromosomes in a prokaryotic and a eukaryote?
1. Eukaryotes are diploid while prokaryotes are haploid.
2. Al DNA in prokaryotes is in cytoplasm and in eukaryotes in nucleus
3. Eukaryotes have linear chromosomes while most prokaryotes contain a single circular chromsome.
4. No packaging of DNA occurs in prokaryotes and DNA is packaged only in eukaryotes

Which of the following statements regarding ‘gene’ will be correct?

The correct statements include:

The consequences of F factor mediated conjugation in bacteria is:
1. both strains are F+.
2. transfer of complete bacterial chromosome.
3. conversion of the recipient strain to F+ and the donor to F-.
4. both strains are F-

What would be the correct explanation of ‘segregation’ in Mendelian genetics?

The results of a dihybrid cross deviate significantly from the expected 9:3:3:1 ratio. This is because
1. Your plant was faulty
2. The plant can only be self- pollinated in nature
3. You picked two genes that are linked and thus do not assort independently.
4. The genes involved show blending inheritance.

All the following statements regarding lethal allele are true except
1. Lethal alleles are always recessive.
2. Lethal alleles may have a late age of onset.
3. Lethal alleles may be caused by mutations in essential genes.
4. Lethal alleles may affect one individual differently than another.

Inactivation of X-chromosome as a part of dosage compensation will be characterized by all the following except
1. The process is entirely random.
2. X inactivation may occasionally occur in males.
3. This process ensures a homogenous phenotype in heterozygotes.
4. X inactivation occurs early in embryonic development.