When gametes are formed through a process called reproduction, where a male's gamete combines with a female gametes' cell and produces a zygote; the alleles for that are varied in different fertilized zygotes. For example a zygote could have two different alleles from the gene from the male and the female; G and g, thus it would be heterozygous. However at the same time another zygote could have the gene of GG which would be homozygous and pure green.
segregate
states that the two alleles for a traite segregate (separte) when gametes are formed.
Gametes should contain one allele for each gene locus. This means that gametes will have one allele for each of the genes on the chromosomes they are carrying. It is estimated that humans have about 20,000-30,000 genes - meaning each gamete would therefore have 20,000-30,000 alleles.
Gametes contain only one set of chromosomes. They only have one allele for each gene because they are designed to combine with another cell in order to form an organism.
Each pair of chromosomes separates on its own during meiosis.
Independent assortment is the random assortment of chromosomes during the production of gametes. This results in genetically unique gametes. The gametes are genetically different to the one another. This leads to genetic variation.
states that the two alleles for a traite segregate (separte) when gametes are formed.
Heredity
segregation
By sexual reproduction the parental alleles through gametes are inherited in the subsequent generation
The process is called Meiosis.
The process is called Meiosis.
a zygote
Gametes should contain one allele for each gene locus. This means that gametes will have one allele for each of the genes on the chromosomes they are carrying. It is estimated that humans have about 20,000-30,000 genes - meaning each gamete would therefore have 20,000-30,000 alleles.
Possible alleles in the gametes of the parents
Segregation
Gametes contain only one set of chromosomes. They only have one allele for each gene because they are designed to combine with another cell in order to form an organism.
When two gametes fuse to make a zygote, cross bridges form between the DNA from the two gametes. During cell division, the two gametes then separate, with some of the parts of gamete 1 being transferred to gamete 2 and vice versa. This recombination allows genetic diversity to occur. A gamete with ABCDE alleles will therefore "recombine" with a gamete with FGHIJ alleles to make, for example, ABHDJ cells. The new sequence will be replicated in subsequent cells.