Mitosis
What is the purpose of mitosis?
Mitosis creates new, genetically identical body cells for growth, repair, and replacement.
What is meiosis?
Meiosis is a type of cell division that produces four genetically different haploid cells from one diploid cell.
What does DNA stand for?
A. Deoxyribonucleic Acid
B. Deoxyribose Nucleic Acid
C. Double Nitrogen Acid
D. Deoxynitric Acid
A. Deoxyribonucleic Acid
This organ produces sperm and testosterone
Testicles/Testes
DNA is found mainly in which part of a eukaryotic cell?
A. Cytoplasm
B. Ribosome
C. Nucleus
D. Cell membrane
C. Nucleus
How many daughter cells are produced in mitosis
2
How many daughter cells are produced in meiosis?
4
DNA has which shape?
A. Single helix
B. Double helix
C. Triple helix
D. Straight chain
B. Double helix
What is the difference between sexual and asexual reproduction
asexual involving only one parent
sexual involving two parents
This tube is where fertilisation occurs
Fallopian tubes
Are the daughter cells genetically identical in Meiosis?
No, they are genetically different
Adenine always pairs with:
A. Cytosine
B. Guanine
C. Thymine
D. Uracil
C. Thymine
A-T
C-G
Name one organism that reproduces asexually
bacteria
yeast
strawberries
sharks
This organ produces eggs and releases hormones such as oestrogen and progesterone.
Ovaries
What occurs during the cytokinesis phase
Cytokinesis is the step where the cell physically splits into two separate daughter cells.
How many divisions occur in meiosis?
Two divisions: Meiosis I and Meiosis II.
Which sugar is found in DNA?
A. Ribose
B. Deoxyribose
C. Glucose
D. Fructose
B. Deoxyribose
Mitosis is followed by which process?
A. Meiosis
B. Fertilization
C. Cytokinesis
D. Replication
C. Cytokinesis
Which scientist(s) proposed the double-helix model of DNA?
Watson and Crick
List the stages of mitosis in order
Prophase --> Metaphase --> Anaphase --> Telophase
(Cytokensis)
Why do siblings not look the same? List 2 reasons with reference to mitosis
- Crossing over
- Independent assortment
- Random fertilisation
- Allele combinations
- Mutations
What are the 4 bases in DNA
Adenine (A)
Thymine (T)
Guanine (G)
Cytosine (C)
List a disadvantage of asexual reproduction
No genetic variation - species can die out
This scientist work was shared without her knowledge and provided the key evidence that DNA has a double‑helix structure
Rosalind Franklin