Yes, mutations can occur all over at the same time.
For example in a multicellular organism a gamma ray or x-ray photon passing through the organism can generate one or more mutations in every cell that the photon passes through.
Another example mutagenic chemicals can produce many mutations in every chromosome.
Although the cause of barbules to form on feather barbs doesn't sound like a difficult change in evolution, it would likely take more than just a single mutation for such an evolutionary change to occur. Most likely, it would take many mutations.
Mutations are harmful if they decrease the function of some part of the body. Unfortunately, this is the case far more often than them making an improvement.
Both types of mutation have the potential to cause a large effect.In general, a frameshift mutation is more likely to cause a large effect. This is because it shifts the 'reading frame' - so that all of the subsequent codons (groupings of 3 bases that are read to determine which amino acid will be added) will be changed.A point mutation is when a single base is replaced. This can either result in the same amino acid being added to the protein being synthesised (a silent mutation), a different amino acid being added (a missense mutation) or in a STOP codon (a nonsense mutation).If a point mutation causes a premature STOP codon - this is quite likely to have a large effect on the protein.
Chromosome mutations are generally considered more severe than point mutations because they involve changes in a larger portion of genetic material, potentially affecting multiple genes and leading to more significant impacts on an organism's phenotype. Point mutations, on the other hand, involve changes in a single nucleotide and may have smaller-scale effects.
The simplest answer is variation or death. If the mutation is abberant enough it renders the organism nonviable...a continum of lesser effects that potentially result in deformity, disorder, pigment variation, behavioral change all the way to some fabulous modification that creates a great adaptation that makes an organism more successful.
It depends on the mutation. Some mutations have no effect on survival, some mutations are lethal, and some mutations make an individual better adapted to its environment, so it will be more fit than those without the mutation, and therefore produce more offspring with the same mutation, which could change the allele frequency of a population.
Polyploidy mutation is a type of mutation that results in an organism having more than two complete sets of chromosomes. This can lead to increased genetic diversity and potentially new traits in the organism.
Although the cause of barbules to form on feather barbs doesn't sound like a difficult change in evolution, it would likely take more than just a single mutation for such an evolutionary change to occur. Most likely, it would take many mutations.
Single means 1... multi means more.... lets see if we use common sense a single cell organism has one cell and a multicellular organism has more than one cell.
Those that increase your health, your survival, your ability to have children and of course too many other benefits to name, here. Generally mutations are the key to natural selection. Beneficial mutations that occur allow an organism to survive longer, thus reproduce more, passing this mutated trait down to their offspring.
Hemophilia is a mutation of either of the genes that make factor VII or IX. Hemophilia A is a mutation of the F8 gene and Hemophilia B is the mutation of the F9 gene. Both of these mutations occur on the sex-linked X chromosome.
Mutations are harmful if they decrease the function of some part of the body. Unfortunately, this is the case far more often than them making an improvement.
It only affects the offspring of the organism.
A mutation is an evolution of the deceased ancestors which takes decades to form. Example: in the past, whales had legs and elephants never had trunks--million years later (present time), whales have fins and elephants have trunks. An adaptation is getting used to--like bacteria becoming resistance towards antibiotics and how we, humans, are suited with most of the environment around us. How can a mutation lead to an adaptation? Adaptation tends to be faster than mutation, but both help the organism to survive; natural selection. Since mutation is known to occur randomly; mutation can lead to adaptation by "choosing" an organism for the "survival of the fittest". Additionally, an adaptation is a mutation. When an mutation is occurring, genes are passed down from generation to generation. As more and more organisms are inheriting the mutation, they become a typical part of the species. The mutation has become an adaption.
Single individuals are naturally selected, but populations ( can be whole species ) evolve. Any mutation happening in the germ line of an individual will die with him. Only his progeny can inherit said mutation and evolve. Evolution is the change in allele frequency over time in a population of organisms.
No it is a multi-celled organism. It contains more than one cell.
a gene is passed on from generations and a chromosome is just found in certain cells