what is monohybrid inheritance?

Answer 1

Monohybrid inheritance is the inheritance of a single characteristic. The different forms of the characteristic are usually controlled by different alleles of the same gene. For example, a monohybrid cross between two pure-breeding plants (homozygous for their respective traits), one with yellow seeds and one with green seeds, would be expected to produce an F1 (first) generation with only yellow seeds because the allele for yellow seeds is dominant to that of green. A monohybrid cross compares only 1 trait. For example, the a monohybrid cross would compare how tall or short a plant is while a dyhybrid cross would compare how tall or short a plant is AND what color seeds are produced.

In short and oversimplified -- it is looking at one trait that is inherited from the "parents" -- for more info please visit the website I have listed as my source -- I hope this information was helpful

Answer 2

Monohybrid Inheritance

Answer 3

Monohybrid inheritance is the inheritance of a single characteristic. The different forms of the characteristic are usually controlled by different alleles of the same gene. For example, a monohybrid cross between two pure-breeding plants (homozygous for their respective traits), one with yellow seeds and one with green seeds, would be expected to produce an F1 (first) generation with only yellow seeds because the allele for yellow seeds is dominant to that of green. A monohybrid cross compares only 1 trait. For example, the a monohybrid cross would compare how tall or short a plant is while a dyhybrid cross would compare how tall or short a plant is AND what color seeds are produced.

Answer 4

Pattern of inheritance seen in simple genetics experiments, where the two animals (or two plants) being crossed are genetically identical except for one gene, which is heterozygous. In other words, inheritance is the passing of characteristics from parents to offspring, while monohybrid inheritance is inheritance for a single characteristic. So there!

Answer 5

Monohybrid inheritance considers the inheritance of only one trait. A simple example would be the crossing of the dwarf and normal forms of the sweet pea plant. This cross is simply looking at the trait for height.

There are two alleles (forms of the gene) for this: one Tall (call it T) is dominant and the other is short (call it t) and is recessive. In order to be short the pea plant needs to have two "t"s as one copy of the dominant "T" would give rise to a tall plant.

Crossing a homozygous (both alleles the same) Tall with a Dwarf plant can be represented "TT x tt". From one plant you always get a T gene and from the other you always get a t gene, the offspring will all be Tt (heterozygous) and will all appear tall (ie their phenotype is tall).

Now for the nifty bit, if you cross the offspring: "Tt x Tt", you will wind up with a ratio of 3:1 Tall : Dwarf plants.
The geneotypes of the offspring from this cross will be:
1x TT (homozygous dominant phenotype tall)
2x Tt (heterozygous phenotype tall)
1x tt (homozygous recessive phenotype dwarf)

This is the classic monohybrid cross ratio calculated by Mendel.

Dihybrid inheritance considers two separate traits (Mendel chose pea colour and shape) and leads to a slightly more complex ratio - see if you can work it out!

Answer 6

A monohybrid cross is when two organisms mate, but have different alleles but with one genetic locus of interest. The ratio for a monohybrid cross is when two heterozygous (dominant) are crossed and one becomes homozygous (recessive). This usually becomes a ratio of: 2:1. And it would be most likely that one of the alleles are lethal.

Answer 7

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Monohybrids are the cross between two parents that differ in one trait. So, for example, tall pea plants crossed with short pea plants. Mendel found that the offspring of this cross (the hybrids) were all tall. When those hybrids were crossed, he found 3/4 of the offspring were tall and 1/4 of the offspring were short. A dihybrid cross is a cross between two parents that differ in two traits.

Answer 8

Something to do with pattern of inheritance seen in simple genetics.

Answer 9

It's inheritance for a single trait, when both parents are hybrids.

For example, if blue teeth were dominant over white teeth and the gene for blue teeth was "B" and the gene for white teeth was "b", the cross would be: Bb x Bb.

Answer 10

As with most things in Biology the answer is in the Name.
Mono = single or one.
Hybrid = change.
So it is one change in genetic makeup of a living organisim, for instance, hair colour, it can be blond, red, brown or black. It can't be red and black.