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When a alleles creates a visible trait you call it what?
When an allele creates a visible trait, it is called a dominant allele. Dominant alleles mask the expression of recessive alleles when present in a heterozygous individual.
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 creates different combinations of maternal and paternal chromosomes in gametes?
Independent assortment
What process is responsible for the independent assortment of alleles?
The process responsible for the independent assortment of alleles is meiosis. During meiosis, homologous chromosomes randomly line up and separate into different gametes, ensuring that alleles for different genes are inherited independently of each other. This creates genetic diversity in offspring.
How else is variation produced besides from mutations?
Variation in a population can also arise through genetic recombination during sexual reproduction, where the combination of alleles from two parents creates new genetic combinations in offspring. Additionally, gene flow, or the transfer of genetic material between populations, can introduce new alleles and increase variation. Environmental factors can also lead to phenotypic variation, as organisms adapt to different conditions, resulting in diverse traits even among genetically similar individuals.
When a alleles creates a visible trait you call it what?
When an allele creates a visible trait, it is called a dominant allele. Dominant alleles mask the expression of recessive alleles when present in a heterozygous individual.
How does crossing over explain genetic variability?
Normally the genes on a chromosome are inherited as a complete set. If you get that chromosome you get all the genes on it. In the process of crossing over similar sections of DNA are swapped from one chromosome to another. This means that different pairings of genes will be inherited together going forward.
How does meiosis create variation?
Meiosis creates genetic variation through the production of 4 haploid daughter cells, each with random genetic combinations. Meiosis also creates genetic variation through the process called crossing over, where chromosome segments are exchanged.
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 does the chromosome do for a cell?
Chromosomes are made of DNA which creates the data required for protein production.
What creates different combinations of maternal and paternal chromosomes in gametes?
Independent assortment
What effect does crossing over in propahse 1 have on the cells?
Crossing over in prophase 1 of meiosis increases genetic variation in the cells by creating new combinations of alleles on the chromosomes. This process helps in generating genetic diversity among offspring.
Why is crossing over so important?
Crossing over during meiosis is important because it promotes genetic diversity by shuffling genetic information between homologous chromosomes. This process creates new combinations of alleles and increases the variation in offspring. Additionally, crossing over helps to exchange beneficial traits between chromosomes, which can contribute to evolutionary adaptability.
What process is responsible for the independent assortment of alleles?
The process responsible for the independent assortment of alleles is meiosis. During meiosis, homologous chromosomes randomly line up and separate into different gametes, ensuring that alleles for different genes are inherited independently of each other. This creates genetic diversity in offspring.
Which of the following transformations creates similar figures?
Enlargement.
How is crossing over like shuffling a deck of cards?
Shuffling a deck of cards creates new combinations of hands . Unless you're playing dishonestly, all the cards in a game will be the same. Only after they're dealt will the hands be different. In genetics, crossing over creates new combinations of genes from a set of existing genes.
