Genetics Answers

Suppose a plasmid named ABC initially did not contain any antibiotic resistant gene. Suddenly you found this plasmid having penicillin and tetracycline resistant gene. What do you think how is it occurred? 

1.Human growth is controlled by three pairs of uncoupled genes that interact in a type of polymery. The shortest people have all recessive genes and height 150 cm, the highest have all dominant genes and height 180 cm. A short woman married to a man of medium height, heterozygous for all the genes of growth. Determine the genotypes and phenotypes of children and parents.

2.Normal hearing in humans is determined by the presence of two dominant genes D and E. If the person has only one dominant gene (D-ee, ddE-) or all recessive (ddee) he is deaf. Deaf parents have seven children with normal hearing. Determine the genotypes of the parents. Determine the form of gene interaction.

discussed the concept of inheritance in regards to genetic traits. How does the Chromosomal Theory of Inheritance helped to advance our understanding of genetics?

Thomas ordered genetic testing for his pet mouse. The results show that the mouse has a mutation in one of the alleles of the gene responsible for the production of hydrochloric acid. As a result, the mouse isn’t producing enough acid and has some issues digesting food. Is this mutation dominant, recessive, or does it show incomplete dominance?