Download Chapter 10 Meiosis

Chapter 10 Meiosis
Complete this sheet and be ready to discuss when class starts the next day we meet.
 ___________________ cells are immature reproductive cells that develop male
and female animals.
 ______________________ are sex cells.
 When a male and female gamete manages to get together, they form the first cell
of a new individual by the way of ________________________.
 What are the three events that occur in the life cycle?
 _____________________ reproduction, one parent alone produces offspring, and
each offspring inherits the same number and kinds of genes and its parents.
 What is a gene?
 Describe the process of sexual reproduction?
 Each unique molecular form of the same genes is called _________________.
 Through sexual reproduction, offspring inherit new combinations of alleles,
which lead to __________________ in their details of their traits.
 Chromosome number:
 Germ cells start out with the same chromosome number as somatic cells (the rest
of the body’s cells). If a cell has a ____________________number, it has a pair
of each type of chromosome, often from two parents.
 What is a homologous chromosome?
 Meiosis halves the chromosome number, so gametes have a
__________________ number.
 How many divisions does meiosis do through?
 What goes meiosis II not go through that meiosis I does go through?
 Look at the pictures in Figure 10.4 on pages 166 and 167
 The overall function to meiosis is to __________________________.
 What is crossing over?
 Draw a diagram of crossing over
 Gamete Formation in Plants
 What is the process of forming the male gametes?
 Once the male gametes have gone through meiosis, what is the term of the four
haploid cells?
 In female animals, gametes are formed by the process of _________________.
 What is the term for an immature egg?
 What is the difference of male gametes versus female gametes?
 How many male gametes are formed in meiosis? Females gametes?
 What is the name of a mature female gamete?
 Where does the female gametes originate? Male gametes originate?
 The chromosome number is restored through the process of
_____________________.
 Compare and constrast between Mitosis and meiosis?