Asked by
Catherine Gottschalk
on Dec 03, 2024Verified
Many inherited disorders result from defective alleles.Which of the following genetic combinations is most likely to result in a disorder such as sickle-cell anemia?
A) Recessive,defective alleles from both parents
B) A defective,recessive allele from the mother
C) A defective,recessive allele from the father
D) One normal allele and one recessive allele from each parent
Recessive
A genetic trait that is expressed in an organism's phenotype only when two copies of the gene are present, as opposed to dominant traits, which require only one copy.
Anemia
A condition characterized by a deficiency of red blood cells or hemoglobin in the blood, leading to fatigue and weakness.
Alleles
Variations of a gene that occur at the same place on a chromosome, responsible for the diversity in genotype and phenotype among organisms.
- Identify genetic disorders and their causes.
Verified Answer
RT
Learning Objectives
- Identify genetic disorders and their causes.