10.3 Meiosis Flashcards
What is meiosis?
Meiosis is a type of cell division that reduces the chromosome number by half, producing four haploid cells from one diploid cell.
True or False: Meiosis results in two identical daughter cells.
False
What is the end product of meiosis?
The end product of meiosis is four genetically diverse haploid gametes.
Fill in the blank: The process of fertilization involves the fusion of a sperm and a _____ to form a zygote.
egg
What is a gamete?
A gamete is a haploid reproductive cell, such as a sperm or egg, that can unite with another gamete to form a zygote.
What is a zygote?
A zygote is the fertilized egg that results from the union of a sperm and an egg.
What is crossing over?
Crossing over is the exchange of genetic material between homologous chromosomes during meiosis, leading to genetic variation.
What is independent assortment?
Independent assortment is the random distribution of homologous chromosomes during meiosis, contributing to genetic diversity.
What occurs during synapsis?
During synapsis, homologous chromosomes pair up and form tetrads during prophase I of meiosis.
Multiple Choice: Which phase of meiosis does crossing over occur? A) Prophase I B) Metaphase II C) Telophase I
A) Prophase I
True or False: Meiosis consists of one round of DNA replication followed by two rounds of cell division.
True
What is the significance of genetic variation in meiosis?
Genetic variation is important for evolution and adaptation, and it arises from processes like crossing over and independent assortment.
Fill in the blank: The two divisions in meiosis are called meiosis I and meiosis _____.
II
What is the role of gametes in sexual reproduction?
Gametes unite during fertilization to form a zygote, initiating the development of a new organism.
Short Answer: How does meiosis contribute to genetic diversity?
Meiosis contributes to genetic diversity through crossing over and independent assortment, which shuffle genetic material.
