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Which of the following creates new combinations of alleles along one chromosome?
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∙ 12y ago
Crossing Over
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∙ 12y ago
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When a alleles creates a visible trait you call it what?
Dominant.
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 type of cell division creates X and Y?
The type of cell division that creates X and Y chromosomes is called meiosis. During meiosis, the cell undergoes two rounds of division, resulting in the production of four daughter cells. In humans, this process occurs in the cells that produce gametes (sperm and eggs), and it ensures that each gamete receives only one copy of each chromosome, including either an X or a Y chromosome in the case of sex cells.
What is it called when one trait is completely dominant over another?
This is called codominance in this case, neither allele is dominant over another, it creates in heterozyogous individuals a phenotype that is not in intermediate, nor the phenotype either of the two alleles create, but rather, a different phenotype.
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.
When a alleles creates a visible trait you call it what?
Dominant.
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.
The great variety of possible gene combinations in a sexually reproducing species is due in part to the?
Recombination, or crossing over, is the process by which homologous chromosomes exchange genetic material during meiosis. This creates gametes with many different combinations of alleles, and is a major source of genetic variation in sexually reproducing species.
What creates different combinations of maternal and paternal chromosomes in gametes?
Independent assortment
What does the chromosome do for a cell?
Chromosomes are made of DNA which creates the data required for protein production.
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.
Which of the following enzymes creates a primer for DNA polymerase?
Primase
What type of cell division creates X and Y?
The type of cell division that creates X and Y chromosomes is called meiosis. During meiosis, the cell undergoes two rounds of division, resulting in the production of four daughter cells. In humans, this process occurs in the cells that produce gametes (sperm and eggs), and it ensures that each gamete receives only one copy of each chromosome, including either an X or a Y chromosome in the case of sex cells.
