Chapter 14 - Section 2 Flashcards
1
Q
How do small changes in DNA molecules affect human traits?
A
Changes in a gene’s DNA sequence can change proteins by altering their amino acid sequences, which may directly affect one’s phenotype.
2
Q
What are the effects of errors in meiosis?
A
If nondisjunction occurs during meiosis, gametes with an abnormal number of chromosomes may result, leading to a disorder of chromosome numbers.
3
Q
Nondisjunction
A
error in meiosis in which to homologous chromosomes fail to separate properly
