Question

Which of the following statements is true?

a) Not all inheritance patterns follow a strict dominant/recessive relationship.

b) Geneticists want to understand both inheritance patterns and the underlying molecular mechanisms that cause them to happen.

c) Different inheritance patterns are explained by a variety of different molecular mechanisms.

d) All of the above are true.

Answer 1

All the statements regarding inheritance patterns in human genetics are true, with varying complex genetic interactions beyond the simplistic Mendelian dominant-recessive model, including autosomal dominance, X-linked dominance, and others.

Step-by-step explanation:

The statement that is true regarding inheritance patterns in human genetics is: d) All of the above are true.

• Not all inheritance patterns follow a strict dominant/recessive relationship.
• Geneticists want to understand both inheritance patterns and the underlying molecular mechanisms that cause them to happen.
• Different inheritance patterns are explained by a variety of different molecular mechanisms.

Inheritance patterns such as autosomal dominance and recessiveness, X-linked dominance and recessiveness, incomplete dominance, codominance, and lethality showcase the complexity of genetics beyond the simple dominant-recessive model described by Mendel. Moreover, genetic mutations, changes in the nucleotide sequence of DNA, play a significant role in the diversity of genetic traits and disorders.

These patterns are the result of the complex interplay between different alleles and their interaction at the molecular level, which can include various forms of dominant, recessive, codominant, or incompletely dominant allele relationships.