Question

The offspring of two koalas develops a genetic disease. when scientists studied the parents’ dna, they found that both parents carried harmful recessive genes passed down from the exact same lineage. which process contributed to the offspring’s genetic disorder?

Answer 1

The offspring's genetic disorder is caused by recessive inheritance, where the parents passed down harmful recessive genes from the same lineage.

Step-by-step explanation:

The process that contributed to the offspring's genetic disorder is known as recessive inheritance. Recessive inheritance occurs when an individual inherits two copies of a recessive gene, one from each parent.

In this case, both parents carried harmful recessive genes passed down from the same lineage. If both parents transmit their abnormal allele to the offspring, it can result in the development of a genetic disorder.

An example of a genetic disorder caused by recessive inheritance is Tay-Sachs disease, where the offspring inherits two copies of the faulty allele and develops the disease.

Answer 2

The process that contributed to the offspring's genetic disorder in this scenario is inbreeding. Inbreeding occurs when closely related individuals, such as those from the same lineage, mate and produce offspring.

This increases the likelihood that both parents will carry and pass on the same harmful recessive genes to their offspring. When an individual inherits the same recessive gene from both parents, the chances are higher for the expression of a genetic disorder, especially if that gene is associated with a harmful trait or disease.

In the case of the koalas, both parents carrying the same harmful recessive gene led to their offspring developing a genetic disease.