Chapter 11 Test (11.4 Notes) Flashcards
(33 cards)
How many sets of genes do multicellular organisms inherit?
Multicellular organisms inherit two compete sets of genes.
What is the diploid chromosome number for humans?
The diploid chromosome number of humans is 46.
What does it mean for chromosomes to be homologous?
Homogenous chromosomes are pairs in which one chromosome comes from each parent.
How is the diploid number represented in a fruit fly?
The diploid number for a fruit fly is 2n=8.
What does it mean for a cell to be haploid?
A haploid cell contains only one set of chromosomes.
What is the haploid chromosome number for fruit fly gametes?
The haploid number of for fruit fly gametes is N=4.
What is meiosis and what is its purpose?
Meiosis is a process that reduces chromosome number by half, creating genetic diversity.
How many divisions occur in meiosis?
What structure is formed when homologous chromosomes pair up in Prophase I?
What happens during interphase before meiosis begins?
What is crossing-over and why is it important
What happens during Metaphase I of meiosis?
What occurs during Anaphase I?
What happens in Telophase I and cytokinesis?
How many cells are produced at the end of Meiosis I?
What is different about Meiosis II compared to Meiosis I?
What occurs during Prophase II?
What happens during Metaphase II?
What happens during Anaphase II?
What is the result of Meiosis II?
What are gametes?
What is the male gamete called?
What is the female gamete called?
What is fertilization?
