Growth Flashcards
1
Q
Define mitosis
A
- type of nuclear division
- production of 2 daughter nuclei that are genetically identical
- daughter nuclei have same no. of chromosomes as parent nucleus
2
Q
Chromosomes
A
- rod-like structure visible in nucleus
- made up of deoxyribonucleic acid (DNA) and histone proteins
3
Q
Homologous chromosomes
A
- exist in pairs
- one maternal, one paternal
- same gene loci, length, centromere position, different alleles
4
Q
Growth in plants
A
- restricted to growing points (the tips of roots and shoots)
- occur throughout life of plant
5
Q
Growth in animals
A
- occurs throughout body
- stops aft certain age (when animal rches maturity)
6
Q
Types of cell division
A
- mitosis
- meiosis
7
Q
Mitosis
A
- involved in growth and development
- produces genetically identical cells
8
Q
Meiosis
A
- involved in reproduction
- produces genetically diff cells