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new combinations of alleles
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Does sexual reproduction create new alleles or new combinations of alleles?
new combinations of alleles
Which does sexual reproduction create new alleles or new combination of allele?
Sexual reproduction creates a new combination of alleles.
Does fertilization create new combinations of alleles?
Yes- each gamete cell is haploid, containing half the mother or father's full set of chromosomes. when the two fuse, then a new diploid cell is created, with a full number of chromosomes- half from the mother and half from the father. It has a new genetic combination- the cells of offspring created via sexual reproduction are not genetically identical to their parents' cells.
What evolutionary forces could create new genetic information in a population?
Mutation, gene flow, and genetic recombination are evolutionary forces that can introduce new genetic information into a population. Mutation is the primary source of genetic variation by creating new alleles. Gene flow allows for the movement of genetic material between populations, introducing new alleles. Genetic recombination during sexual reproduction can also create new combinations of genes, increasing genetic diversity.
What is an organism that has two different alleles called?
There are three alleles, the dominant, uppercase 'T', and recessive, 't'. There is also codominance, which is when two separate alleles neither control and create something entirely diffierent ie: Straight haid allels, 'S', and curly hair allele, 'C', create wavy hair. The correct answer to this question is: Heterozygot. An organism with the same alleles at a gene locus is called a Homozygot. Hetero- often meaning "different" as in "Heterosexual -> different sex attraction " and "Homo-" often meaning "same" as in "homosexual -> same sex attraction".
Are mutations the only way to add new genes to a gene pool?
No, mutations are not the only way to add new genes to a gene pool. Gene flow, which involves the movement of genes between populations, can also introduce new genetic variation. Additionally, genetic recombination during sexual reproduction can shuffle existing genes to create new combinations.
Are new alleles made by natural selection?
No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.
How has crossing over changed the combination of alleles in the new nuclei?
Crossing over results in the exchange of genetic material between homologous chromosomes during meiosis. This can create new combinations of alleles in the daughter cells, leading to increased genetic diversity. Furthermore, crossing over can result in the creation of novel gene combinations that were not present in the parental chromosomes.
How many allels per gene are there in each stage of meiosis?
there are the same number of alleles per gene in each stage of meiosis since the number of alleles per gene only tells the possible differences in a gene, such as the alleles for blue, green, and brown eyes being the possible traits to be combined.
How do you do punnet squares?
Take the phenotypes of the two parents and have them above and next to a box: (say that the mother is AA and the father is aa) ....A A a Aa Aa a Aa Aa All of the children should have one dominant and one recessive allele.
How do you do a punnet square for male and female?
To create a Punnett square for male and female traits, you would list the possible alleles (gene variants) for each parent along the top and side of the square. For male traits, you would list the alleles for the X and Y chromosomes. For female traits, you would list the alleles for the two X chromosomes. Then, you fill in the square to show the possible combinations of alleles for their offspring based on the rules of inheritance.
How do mutations create new alleles within a population?
Mutations are changes in the DNA sequence that can create new alleles by introducing variations in the genetic code. These new alleles can then be passed on to future generations, leading to genetic diversity within a population.
