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

I.	Can be described as a unit of heredity.
II.	Contains information to produce a particular protein.
III.	Affects traits at the cellular level.
IV.	Can exist in many forms.

The correct statements include:

1.	I, II, and III only	2.	II, III, and IV only
3.	I, III, and IV only	4.	I, II, III, and IV

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.

Gene ‘dosage’ effect can explain all the following except:

1. Males with one normal allele for the X linked gene dystrophin are unaffected, while females (who shut off one of their two X chromosomes) with one normal allele for dystrophin may be mildly affected with muscular dystrophy.

2. Flower color in four-o-clocks seems to be incompletely dominant.

3. In fruit flies, homozygotes for an allele that produces a small amount of functional protein are severely abnormal but survive to adulthood, while homozygotes for an allele that produces no protein at all die as embryos.

4. In bees, males normally are haploid while females normally are diploid.

Identify the correct statements regarding linked genes:

Resistance to sudden death is a dominant trait in soybeans. Two parent plants that are resistant to sudden death produce a progeny that is not resistant, but this progeny can pass the trait to its progeny in the next generation. This unusual pattern can be explained by?
1. Overdominance
2. Incomplete penetrance
3. Incomplete dominance
4. Variable expressivity

All the following regarding maternal effect genes are true except
1. It is located in the nuclear DNA.
2. Maternal genotype affects offspring phenotype.
3. It may control deposition of material into oocytes.
4. It must be located on the X chromosome.