Question

In: Biology

How do protists reproduce sexually and asexually. What are the stages?

Expert Solution

Ans:- Protists mainly reproduce through asexual methods but it can also reproduce through sexual means.

• Asexual reproduction in protists:-

It happens by many methods:

1.) Binary fission:- In binary fission single cell divide in two halves by mitosis and each grow into two individuals..

Eg:- Amoeba, Paramecium

2.) Budding:- In protists asexual reproduction occurs by forming small buds... These buds initially attach to parent plants and gradually separated and form a new individual.

Eg:- Arcella

3.) Multiple fission:- In this type individual cell divide into several daughter cells snd each cell form new individuals.

Eg:- Amoeba, Plasmodium

4.) Spore formation:- in some protists spores are formed. On germination each spore give an individual.

Eg:- Slime moulds

• These are main methods of asext reproduction in protists... In Opalina it occurs by PLASTOMOMY but it is not a common method...

•• Sexual Reproduction:-

Sexual reproduction involves formation of male and female gametes either by same or different sex.. It involved meiosis as chromosomes reduced to half in this process.

• There are mainly two methods of sexual reproduction in protists-

1.) Syngamy:- It invoves fusion of male and female gametes to form a diploid Zygote..

Eg:- Plasmodium , Mocystis

2.) Conjugation:- In this two individuals temporarily meet only to exchange their haploid Pronuclear to form a zygote nucleus... Each individual with zygote nucleus give daughter individuals by binary fission.

Eg:- Paramecium

I hope this will help you... If u want more elaboration please let me know.. Thanx

gladiator answered 2 months ago

Do algae reproduce sexually or asexually?

A few species of insects, fish, and crustaceans can reproduce sexually and asexually a. How can...

A few species of insects, fish, and crustaceans can reproduce sexually and asexually a. How can the populations shift towards only asexually? (Explain describing factors that may occur) b. Why are asexual, parthenogenetic species found at the tips of trees while their closest relatives reproduce sexually? (Explain why this pattern occurs) c. Normally, one would infer that lower-variation should be found with asexually-reproducing species. However, lizards that have only females and parthenogenetic species of plants have higher-variation. Explain why this...

From giant stick insects to pythons, some animals can choose to reproduce sexually or asexually. In...

From giant stick insects to pythons, some animals can choose to reproduce sexually or asexually. In terms of parental contributions and genetic variation of the offspring, what are the benefits and drawbacks when sexually-reproducing organisms opt for parthenogenesis?

Why are sexually reproducing organisms that use genetic imprinting unlikely to be able reproduce asexually (focus...

Why are sexually reproducing organisms that use genetic imprinting unlikely to be able reproduce asexually (focus on the problems genetic imprinting causes)? Similarly, why does genetic imprinting cause difficulties with regard to cloning organisms? Explain.

suggest why species that reproduce asexually can out-perform sexually reproducing organisms in some situations.

how might the environment affect a fungus reproducing sexually or asexually

What are the sources of genetic variation in sexually-reproducing organisms? In asexually-reproducing organisms, such as viruses...

What are the sources of genetic variation in sexually-reproducing organisms? In asexually-reproducing organisms, such as viruses and prokaryotes?

Some species can have both sexually and asexually reproducing phenotypes. In theory, why should asexually reproducing...

Some species can have both sexually and asexually reproducing phenotypes. In theory, why should asexually reproducing phenotypes be able to outcompete sexually reproducing phenotypes? Explain why, in nature, asexually reproducing phenotypes are rarely superior to sexually reproducing phenotypes.

What are retroviruses? How do they reproduce and what is the role of the enzyme reverse...

What are retroviruses? How do they reproduce and what is the role of the enzyme reverse transcriptase?

1. What are the characteristics of a virus and how do they reproduce? Be sure to...

1. What are the characteristics of a virus and how do they reproduce? Be sure to explain in detail. 2. How do antiviral medications affect viruses? Be sure to explain in detail. 3. List the different ways that viruses may be transmitted from an infected person? 4. List ways to minimize transmission of viruses to another individual? 5. How does host resistance and microbial virulence affect the following: A patient's ability to fight the infection The ability of the treatment...