Does the number of chromosomes determine the complexity of the organism? Answer 1: No, the number of chromosomes is actually barely related to complexity at all. For instance, humans have 46 chromosomes (2 sets of 23) whereas small deer have 6 chromosomes, and carp have over 100.
The number of chromosomes does not correlate with the apparent complexity of an animal or a plant: in humans, for example, the diploid number is 2n = 46 (that is, 23 pairs), compared with 2n = 78, or 39 pairs, in the dog and 2n = 36 (18) in the common earthworm. There is an equally great range of numbers among plants.
Do larger organisms have more chromosomes?
there is no relationship between size of organism and its chromosome number. A smaller organism may have more chromosomes than a larger organism.
What makes an organism more complex?
A complex organism contains multiple organ systems with different functions. Multiple organisms of a single species may form a group, called a population. Many populations of different species form diverse communities, and communities that share the same geographical space are part of a larger ecosystem.
What organisms have the most chromosomes?
The organism with the highest chromosome number recorded in to date is estimated to be 1,440 (or 720 pairs) found in the adder’s tongue fern Ophioglossum reticulatum.
Why do organisms have even number chromosomes?
The reason why the majority of organisms have an even number of chromosomes is because chromosomes are in pairs. … Another exception would be polyploidy , which occurs when organisms have more pairs of chromosomes than a diploid cell does. Below is a picture to help visualize polyploidy.
Why do some organisms have more chromosomes than others?
Through the course of evolution, some species have generated multiple copies of their chromosomes due to errors in meiosis, when the sex cells or gametes are produced. … Having more than two copies of each chromosome is called polyploidy.
Can organisms with fewer chromosomes reproduce more easily than organisms with more chromosomes?
(b) Can organism with fewer chlromosomes reproduce more easily than organisms with more number of chromosomes? … (c) Yes, since the major component of chromosome is DNA, if there are more chromosomes in a cell. The quantity of DNA will also be more.
Do larger organisms have more numbers of chromosomes as compared to smaller organisms?
(a) No, there is no correlation between size of organism and its chromosome number. Even smaller organisms may have more chromosomes than the larger ones. … Genes are linearly arranged on chromosomes. Hence, more the number of chromosomes, greater is the amount of DNA.
Can organisms with fewer chromosomes reproduce more easily than?
Even smaller organisms may have more chromosomes than the larger ones. (b) No, process of reproduction is independent of the chromosome number and depends on a environmental factors like nutrients availability, water source, suitable mate etc. (c) Yes, Genes are the stretch of DNA.
What are less complex organisms?
Generally speaking, prokaryotic cells are smaller and less complex, whereas eukaryotic organisms are larger and can even be multicellular.
Why are animals more complex than plants?
Animals are generally more complex structurally. Unlike plants, they have nerves and muscles that aid in rapid, controlled movement around their environment. Animal cells usually do not have rigid walls like those of plants.
Do species always become more complex?
In fact, natural selection often leads to ever greater simplicity. And, in many cases, complexity may initially arise when selection is weak or absent. If you don’t use it, you tend to lose it. Evolution often takes away rather than adding.
What organism has fewer chromosomes than humans?
To date, the organism with the least number of chromosomes is the male Australian ant, Myrmecia pilosula, with one chromosome per cell (male ants are generally haploid—that is, they have half the number of normal chromosomes while the female ant has two chromosomes per cell).
What organisms have more chromosomes than humans?
Potatoes have 48 chromosomes, which is two more than the 46 human chromosomes. The agrodiaetus butterfly is the animal with most with 268 chromosomes.
Do animals have more chromosomes than plants?
Every species has a characteristic number of chromosomes, called the chromosome number. Animals have more chromosomes; plants have fewer.