What is a factor that covers up another factor?

Asked By: Amandeep Vallurupalli | Last Updated: 7th April, 2020
Category: science genetics
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when there are two alleles that are exactly the same. homozygous. passing on traits from parents to offspring. heredity. a factor that covers up another factor.

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Similarly, what is a factor that seems to disappear?

Mendel's great insight was that each trait is caused by what he called “factors” (what we now call genes ). These factors had to occur in pairs, one from each parent, for traits to appear, disappear, and reappear over generations. The visible, or expressed, trait is an organism's phenotype.

Additionally, what do we call the trait that hides or masks another trait? recessive trait. trait of an organism that can be masked by the dominant form of a trait. genotype.

Also to know, what is the hidden gene called?

The allele that is "hidden" is the recessive allele. The phrase "dominant and recessive genes" is often used to mean "dominant and recessive alleles".

Is TT a phenotype or genotype?

Genotype and Phenotype The genotype is represented by letter combinations, such as TT, Tt, and tt. When an organism has two of the same alleles for a specific gene, it is homozygous (homo means "same") for that gene. An organism can be either homozygous dominant (TT) or homozygous recessive (tt).

35 Related Question Answers Found

What were the phenotypes of the f2 generation?

What were the phenotypes of the F2 generation that Mendel observed? he observed seeds that were round and yellow, wrinkled and green, round and green, and wrinkled and yellow. What is Mendel's principle of independent assortment? Genes for different traits can segregate independently during the formations of gametes.

What was the ratio of smooth seeds to wrinkled seeds in the f2 generation?

Ratio of Mendel's experiments: 3:1 of plants with smooth seeds to plants with wrinkled seeds in the F2 generation (the F2 seeds were approximately 74.7% smooth and 25.3% wrinkled. Mendel concluded that there was one of these (now called a gene) for wrinkled seeds tat did not disappear in the F1 generation.

What alleles do the f1 offspring have?

The alleles that the F1 offspring has is 1,2, and 3.

What is alleles in genetics?

An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele inherited from each parent.

Who has stronger genes mother or father?


Paternal genes have been found to be more dominant than the maternal ones. Genes from your father are more dominant than those inherited from your mother, new research has shown.

What is hidden variation?

(a characteristic particularly of diploid organisms)
In particular, recessive alleles as found in heterozygotes are, essentially by definition, hidden from natural selection and thereby constitute hidden genetic variation. Neutral variation, also essentially by definition, too is hidden from natural selection.

What is the stronger gene called?

Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.

What does it mean to be homozygous?

Homozygous is a word that refers to a particular gene that has identical alleles on both homologous chromosomes. It is referred to by two capital letters (XX) for a dominant trait, and two lowercase letters (xx) for a recessive trait.

What genes are inherited from mother only?

Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father. Mitochondrial chromosomes are inherited solely from the mother. Men inherit their mother's mitochondrial genes but do not pass them to their offspring.

Is DD heterozygous or homozygous?


Sally's genotype is "dd", so she is also considered homozygous. Susan's genotype is "Dd", so she is considered HETEROZYGOUS (has two different alleles for a specific gene). Although Susan has both the allele "D" to make dimples and the allele "d" in her genotype, her phenotype is the presence of dimples.

Do genes come in pairs?

Like chromosomes, genes also come in pairs. Each of your parents has two copies of each of their genes, and each parent passes along just one copy to make up the genes you have. Genes that are passed on to you determine many of your traits, such as your hair color and skin color.

What is the difference between a gene and an allele?

A gene is a portion of DNA that determines a certain trait. An allele is a specific form of a gene. Genes are responsible for the expression of traits. Alleles are responsible for the variations in which a given trait can be expressed.

What is the name of weaker gene?

Each of the two alleles you inherit for a gene each may be strong ("dominant") or weak ("recessive"). When an allele is dominant, it means that the physical characteristic ("trait") it codes for usually is expressed, or shown, in the living organism.

What are the three laws of Mendel?

Mendel's studies yielded three "laws" of inheritance: the law of dominance, the law of segregation, and the law of independent assortment. Each of these can be understood through examining the process of meiosis.

Is wild type dominant?


In many species, the most common allele in the wild population is designated the wild type allele. It is symbolized with a + character as a superscript. Other alleles are dominant or recessive to the wild type allele. For recessive alleles, the locus symbol is in lower case letters.

What is the opposite of homozygous?

The opposite of homozygous is heterozygous. As such, the opposite of dominant is recessive.

Does true breeding mean homozygous?

True breeding. A true breeding is a kind of breeding wherein the parents would produce offspring that would carry the same phenotype. This means that the parents are homozygous for every trait. For this to occur the parents are homozygous for a trait — which means the parents must be both dominant or both recessive.