68. SEXUAL REPRODUCTION Flashcards
1
Q
- What can be said about the structure of Fungal Nuclei?
A
- they are normally Haploid
EXCEPTION:
- there are transient diploid stages
- these are formed during the sexual life cycles
2
Q
- Define Fungal Sexual Reproduction.
A
- this is the fusion of Hyphae
- these hyphae come from different mating types
3
Q
- How do Fungi communicate with their mating type?
A
- they use specific signalling molecules
- these are known as Pheromones
4
Q
- Define Plasmogamy.
A
- this is the union of the Cytoplasm from the two
different parent Mycelia
5
Q
- Define Mycelia.
A
- this is the vegetative part of the Fungus
- it consists of a network of fine, white filaments
- these are the Hyphae
6
Q
- What is Heterokaryon?
A
- this is a stage of the Sexual Reproduction cycle of Fungi
- this stage is in reference to the Mycelium
IN THE MYCELIUM:
- we have the Haploid Nuclei from each parent
- these nuclei coexist
- they do not fuse right away
7
Q
- What is Karyogamy?
A
- this is a stage of the Sexual Reproduction cycle of Fungi
- this stage is in reference to the fusion of the Haploid
Nuclei - this produces diploid cells
8
Q
- How do Yeasts repoduce?
A
- they reproduce mostly asexually
- they use simple Cell Division
- they make use of Budding
9
Q
- Why do Yeasts make use of Asexual Reproduction?
A
- they are unicellular
- they are less developed
- they are more primitive
10
Q
- Define Molds?
A
- these are types of fungi
- they produce haploid spores
- they do this through Mitosis
11
Q
- What is are 2 examples of Molds?
A
- Conidia
- Penicillium
12
Q
- What do Molds form?
A
- they form Mycelia
13
Q
- Which methods do Molds use to reproduce?
A
- they reproduce Asexually
14
Q
- What are two examples of Deuteromycetes?
A
- Molds
- Yeasts
15
Q
- What are Deuteromycetes?
A
- these are imperfect fungi
21
Q
- What kind of spores of Chytrids have?
A
- they have Zoospores
- these are flagellated spores
