Question

identify the characteristics of homologous chromosomes and sister chromatids.
homologous chromosomes
sister chromatids
answer bank
may exchange genetic material
identical copies
have different parental origins
may have different alleles
result of chromosome duplication
linked by a centromere

Explanation:

• Homologous chromosomes: These are pairs of chromosomes. One comes from the mother and one from the father (have different parental origins). During meiosis, they can exchange genetic material (cross - over) and may have different alleles (since they come from different parents and can have variations in genes).
• Sister chromatids: They are the result of chromosome duplication. After DNA replication, a chromosome consists of two sister chromatids. They are identical copies (as they are formed from the replication of a single DNA molecule) and are linked by a centromere.

Answer:

• Homologous chromosomes: may exchange genetic material, have different parental origins, may have different alleles
• Sister chromatids: identical copies, result of chromosome duplication, linked by a centromere