Mitosis
Meiosis/Sexual Reproduction
Variation in Living Things
Asexual Reproduction
DNA
100
How many cell divisions take place during MITOSIS?
1
100
Is a gamete a haploid or diploid cell?
Haploid
100
What is one disadvantage of asexual reproduction?
Lack of genetic diversity, which makes populations vulnerable to change.
100
How many parents are involved in Asexual reproduction? AND are the offspring identical to the parent(s) or are they genetically different?
1 parent / Identical offspring
100
What do we call the SHAPE of this molecule?
Double Helix
200
Are cells created by mitosis identical or different from each other?
Cells produced by mitosis are genetically identical.
200
What phase of Meiosis is being pointed to in this image?
Metaphase I
200
What is one disadvantage of sexual reproduction?
- Need to have 2 parents
- Fewer offspring are produced at a slow rate
- Offspring take a long time to develop and sexually mature
- Offspring take lots of time and energy to raise
200
What is the most common way for bacteria to reproduce?
Binary Fission
200
What is the name of this molecule?
Nucleotide
300
What phase of mitosis is this cell in? AND name one thing that happens during this phase.
Prophase
300
How many chromosomes can be found in a human zygote?
46 chromosomes (or 23 PAIRS of chromosomes)
300
What is one advantage of asexual reproduction?
- Only one parent required
- Reproduction occurs quickly (fast evolution)
- Offspring mature quickly
- Offspring are genetically identical to the parent, so if the parent is successful in the environment, the offspring will be too.
300
How does budding work? (Explain in one short sentence)
A bud grows on the cell, which contains DNA from the parent cell. When this bud falls off, it grows into an adult.
300
What are the structures in the middle of the DNA molecule called?
Nitrogen bases
400
What phase of mitosis is this cell in? AND name one thing that happens during this phase.
Telophase
400
What phase of Meiosis is being pointed to in this diagram?
Prophase II
400
What is one advantage of sexual reproduction?
- Lots of genetic variation
400
What type of asexual reproduction do many fruit and vegetable farmers use to quickly increase the number of plants they can grow? (Think about the apple orchard example)
Vegetative propogation
400
Name 2 of the 4 nitrogen bases found in DNA.
Adenine (A), Thymine (T), Cytosine (C), Guanine (G)
500
What stage of the cell cycle is this cell in? AND name one thing that happens during this stage.
Interphase
500
What phase of Meiosis is pointed to in this image? AND name on thing that happens during this phase.
Anaphase II
500
How can there be genetic variation in asexual species?
Mutations
500
How do moulds spread their spores over a greater area?
They can grow a tower-like structure called a sporangium to release spores that will spread to new locations.
500
What three smaller molecules make up a Nucleotide?
Sugar, Phosphate group, Nitrogen base