Human growth and development Test 1: with Complete Solutions | Verified& Updated 2024 | Already Passed

Human growth and development Test 1: with Complete Solutions | Verified& Updated 2024 | Already Passed Homozygous - Alleles that are the same are called Phenotypes - Aubrey and Ava are identical twins who were raised in separate homes by their divorced parents. Now, as they enter elementary school, Aubrey shows mild symptoms of phenylketonuria (PKU), but Ava's symptoms are more severe. The girls have different ________ for this disease. Down Syndrome - Which condition involves an extra chromosome? Phenylketonuria sickle-cell disease Down syndrome huntington's disease Klinefelter's syndrome - Alexander has a sex chromosome abnormality. He is very tall, has small testicles, and has never been able to conceive a child with his wife. His personality is rather unreactive. Alexander most likely has ________