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When the two haploid gametes contain two different alleles of a given gene the resulting offspring is called?
Wiki User
∙ 12y ago
A heterozygote.
An organism with the same alleles at a locus is called a "homozygot".
Wiki User
∙ 13y ago
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What contain instructions for traits?
Alleles
What is the relationships between chromosomes genes and alleles?
alleles are the various types of options that is chosen by the gene. The gene is the segment of DNA that codes for the protein. Genes are found on chromosomes. Chromosomes contain multiple genes.
What is the reproductive mechanism that allows for an offspring to inherit a trait that is expressed in neither parent?
Each parent has two versions (called alleles) of every gene, although only one is expressed. During the formation of gametes (sperm or egg), the two alleles separate and each gamete gets only one of the two alleles that a parent could contribute.So, let's pretend that both parents have brown eyes, and that the allele W is responsible for brown eyes. Let's also suppose that w (lower case) is responsible for blue eyes. Remember...both parents have two alleles, but only one is expressed, with the capital W being dominant over lower case w, so Ww will have brown eyes even though the blue eye gene is present.The mother, who has brown eyes will have the alleles Ww, so can produce eggs that have either a W or a w. Each egg is equally likely to contain either a W or a w, so about 1/2 of the eggs produced will have a W, the other half a w.The father, who has brown eyes will have the alleles Ww, so can produce sperm that have either a W or a w. Each sperm is equally likely to contain either a W or w, so about 1/2 of the sperm will contain a W, the other half a w.The progeny of these parents will have one of the four possible allele combinations:Father contributes a W, and mother contributes W - offspring will have WW, resulting in brown eyes.Mother contributes a W, and father contributes a w - offspring will have Ww, resulting in brown eyes.Father contributes a W, and mother contributes a w - offspring will have Ww, resulting in brown eyes.Both father and mother contribute w - offspring will have ww, resulting in blue eyes.Note that if the father's sperm contained a W, and the mother's egg contained a W, the progeny will have brown eyes. Also, note that if the father's sperm contained a W and the mother's egg contained a w, the progeny will have brown eyes, because W is dominant over w. The same can be said if the mother contributes a W and the father a w. Three of four possible combinations will result in the progeny inheriting a W from one or both parents, so will have brown eyes, thus, there is a 3/4 probability that the progeny from such a combination will have brown eyes.Also, note that there is a 1/4 probability that an offspring will inherit ww, because each parent contributed the recessive w gene. This ww offspring will have blue eyes even though both parents have brown eyes!The Principle of Segregation of alleles in the formation of gametes makes it possible for each gamete to be equally likely to contain either allele.
How does meiosis serve as the basic of genetic variation?
In meiosis, genes crossover, there is independent assortment (each pair of alleles segregates independently of each other pair of alleles during gamete formation), and the law of segregation (the two alleles for a heritable character segregate during gamete formation and end up in different gametes (daughter cells)). In meiosis, what genes an offspring inherits from each parent is decided. In humans, there are at least 8 million different variations of children.
How do meiosis and sexual reproduction fertilization produce offspring that differ genetically from the parents?
Meiosis maintains genetic diversity in two ways:1) Genetic recombination: the exchange of genetic material between sister chromatids2) By random assortment of paternal and maternal chromosomes and the alleles of genes they contain.
What are some human traits that are caused by multiple alleles?
The heredity of the ABO blood groups are governed by multiple alleles.
What are cells that contain two different alleles for a gene one dominant and one recessive?
Heterozygous
What is a homologies?
This are chromosomes that have exactly the same length that contain the same gene but those genes have different alleles.
What contain instructions for traits?
Alleles
Is an offspring different?
A clone is genetically identical to the parent. Offspring are 'children' that contain a mix of the father and the mothers DNA and so will be genetically different to both of their parents. Offspring from an asexually reproducing organism (i.e bacteria or rotifers) are sometimes referred to as clones as they contain identical DNA to the parent.
What is the relationships between chromosomes genes and alleles?
alleles are the various types of options that is chosen by the gene. The gene is the segment of DNA that codes for the protein. Genes are found on chromosomes. Chromosomes contain multiple genes.
What is the reproductive mechanism that allows for an offspring to inherit a trait that is expressed in neither parent?
Each parent has two versions (called alleles) of every gene, although only one is expressed. During the formation of gametes (sperm or egg), the two alleles separate and each gamete gets only one of the two alleles that a parent could contribute.So, let's pretend that both parents have brown eyes, and that the allele W is responsible for brown eyes. Let's also suppose that w (lower case) is responsible for blue eyes. Remember...both parents have two alleles, but only one is expressed, with the capital W being dominant over lower case w, so Ww will have brown eyes even though the blue eye gene is present.The mother, who has brown eyes will have the alleles Ww, so can produce eggs that have either a W or a w. Each egg is equally likely to contain either a W or a w, so about 1/2 of the eggs produced will have a W, the other half a w.The father, who has brown eyes will have the alleles Ww, so can produce sperm that have either a W or a w. Each sperm is equally likely to contain either a W or w, so about 1/2 of the sperm will contain a W, the other half a w.The progeny of these parents will have one of the four possible allele combinations:Father contributes a W, and mother contributes W - offspring will have WW, resulting in brown eyes.Mother contributes a W, and father contributes a w - offspring will have Ww, resulting in brown eyes.Father contributes a W, and mother contributes a w - offspring will have Ww, resulting in brown eyes.Both father and mother contribute w - offspring will have ww, resulting in blue eyes.Note that if the father's sperm contained a W, and the mother's egg contained a W, the progeny will have brown eyes. Also, note that if the father's sperm contained a W and the mother's egg contained a w, the progeny will have brown eyes, because W is dominant over w. The same can be said if the mother contributes a W and the father a w. Three of four possible combinations will result in the progeny inheriting a W from one or both parents, so will have brown eyes, thus, there is a 3/4 probability that the progeny from such a combination will have brown eyes.Also, note that there is a 1/4 probability that an offspring will inherit ww, because each parent contributed the recessive w gene. This ww offspring will have blue eyes even though both parents have brown eyes!The Principle of Segregation of alleles in the formation of gametes makes it possible for each gamete to be equally likely to contain either allele.
What units found on a DNA molecule that contain control traits?
Alleles
Gametes contain one half one quarter or is equal to the number of alles found in other cells in the body of an organism?
Gametes contain half of the number of chromosomes as somatic cells (the other cells of your body). These chromosomes have the same number of alleles on them as somatic cells, but gametes contain one allele of each gene while somatic cells contain two alleles of each gene. So, they contain half the amount of alleles that the rest of your cells do.
How many phenotypes in a flock of ducks that contain all three alleles?
14......
What is the importance of crossing - over during the first division of meiosos?
It increases the likelihood that the resulting cells will contain different genetic combinations.
How many different traits can these alleles produce?
A single pair of alleles would produce only one phenotype.
