Mitosis, Meiosis, Sexual And Asexual Reproduction Flashcards
What are somatic and germ-line cells?
Normal body cells produced by mitosis and germ-lime cells are sex cells
Difference between replicated and unrepilcated chromosome.
An unreplicated chromosome contains one double strand -DNA molecule. A replicated chromosome contains two identical double strand -DNA- molecules, the chromatids, that are joined at their centromere.
How to determine number of chromosomes?
Look at centromere
Describe the process of binary fission
What’s up brav
What is mitosis?
A process used for growth and repair and is a division which produces 2 genetically identical daughter cells and maintains chromosome number while halving the amount of DNA.
Describe the process of mitosis
Yeah yeah nah
Difference between asexual and sexual reproduction
One is meisosis and one is binary fission
Define the following terms: diploid, haploid, gamete, zygote, fertilisation, mitosis, meiosis, crossing over, independent assortment, random fertilisation, allele
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How many copies of a gene do normal cells have?
2 (diploid)
Define meiosis
It is a division to produce sex cells (gametes) and it produces 4 genetically different cells which are haploid (from one diploid cell) and hence it halves the chromosome number and quarters the DNA
Describe all phases of meiosis 1 and meisosis 2
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Describe the process of prophase 1 and independent assortment and metaphase 1 and what crossing over in these stages produces
Genetic diversity in gametes
Define random fertilisation and what it is good for.
Increasing genetic diversity through sexual reproduction
Differences between mitosis and meiosis
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What can mutation produce?
Differences in gametes
