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Yes. Some are very closely related to archaebacteria which have a large circular chromosome like eubacteria. Others are very closely related to plants (algae), animals (protozoans), and fungi (slime molds) and would have numerous chromosomes, sometimes homologous pairs if diploid, sometimes haploid/monoploid.
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What are the characteristics of protoctists?
Protoctists are eukaryotic organisms that do not fit into the plant, animal, or fungi kingdoms. They are typically single-celled but can also form colonies. Many protoctists are motile and have various modes of reproduction.
What discovery in the 1900 supported Mendel's ideas?
Chromosomes
How many chromosomes do lobsters have?
A lobster has 100 chromosomes. Humans have 46 chromosomes, the same as a lizard. A dog has 78 chromosomes, and a fly has 12 chromosomes.
Are sex chromosomes called homozygous chromosomes?
No, sex chromosomes are not referred to as homozygous chromosomes. Homozygous chromosomes have identical alleles at a specific gene locus, while sex chromosomes determine an individual's biological sex. In humans, sex chromosomes include X and Y chromosomes.
The stringy structures in the cell nucleus that contain DNA are?
chromosomes
What are the characteristics of protoctists?
Protoctists are eukaryotic organisms that do not fit into the plant, animal, or fungi kingdoms. They are typically single-celled but can also form colonies. Many protoctists are motile and have various modes of reproduction.
How does protoctists spread?
it speards like cat
Are Euglenas are multicellular organisms?
Yes because they are protoctists.
Does protoctists have a nucleus?
yes they do but are unicellular eg algae
What are two examples of protoctists in?
sea-weed, protozoa
Are protoctists microscopic?
Do you mean protists? Because, if so, yes
What are protoctists and why are they useful?
Protoctists are a diverse group of eukaryotic microorganisms that include algae and protozoans. They are useful in various ways such as serving as a food source for other organisms, producing oxygen through photosynthesis, and playing crucial roles in nutrient recycling in ecosystems. Additionally, some protoctists have economic importance, such as certain algae species used in food products and biotechnology.
Difference between a unicellular protoctist and bacterium?
Unicellular protoctists are eukaryotic organisms that can be photosynthetic, heterotrophic, or mixotrophic in nature, while bacteria are prokaryotic organisms. Protoctists have a nucleus and other organelles enclosed in a membrane, whereas bacteria lack a defined nucleus and organelles. Additionally, bacteria have a cell wall composed of peptidoglycan, while protoctists may have cell walls made of various materials or lack them altogether.
What discovery in the 1900 supported Mendel's ideas?
Chromosomes
Is protist prokaryotes or eukaryotes?
Eukaryotic.
All chromosomes except the X and Y sex chromosomes are called?
homologous chromosomes and autosomal chromosomes
Why did Ernst Haeckel divide protoctists into a different kingdom?
Ernst Haeckel divided protoctists into a separate kingdom because he believed they were distinct from plants and animals due to their diverse morphology and characteristics. He proposed the kingdom Protista to encompass organisms that didn't fit neatly into the categories of plants, animals, or fungi.
