What kind of cross predicts the inheritance of two characteristics answers com?

What kind of cross predicts the inheritance of two characteristics answers com?

Independent assortment of genes can be illustrated by the dihybrid cross, a cross between two true-breeding parents that express different traits for two characteristics.

What are the different ways that a trait may be inherited?

autosomal dominant – where the gene for a trait or condition is dominant, and is on a non-sex chromosome. autosomal recessive – where the gene for a trait or condition is recessive, and is on a non-sex chromosome. X-linked dominant – where the gene for a trait or condition is dominant, and is on the X-chromosome.

What crosses will result in all dominant phenotype offspring?

In the test cross invented by Mendel, the plant with the dominant phenotype is crossed with a plant that is homozygous for the recessive trait. If the unknown is homozygous, all offspring will have the dominant phenotype.

Which of the following terms is used to describe the offspring of a cross of two true breeding parents that differ in one or more traits?

When fertilization occurs between two true-breeding parents that differ in only one characteristic, the process is called a monohybrid cross, and the resulting offspring are monohybrids.

Is HH homozygous?

A full head of hair is a dominant feature, with the homozygous gene of HH. However, the recessive trait – baldness – can be manifested in an individual with the homozygous recessive gene, or hh. Curly hair is a dominant trait, with the homozygous HH gene causing the condition.

What is test cross and back cross?

The main difference between test cross and the backcross is that test cross is used to discriminate the genotype of an individual which is phenotypically dominant whereas a backcross is used to recover an elite genotype from a parent which bears an elite genotype.

What is test cross in genetics?

In its simplest form, a test cross is an experimental cross of an individual organism of dominant phenotype but unknown genotype and an organism with a homozygous recessive genotype (and phenotype).

What cross will result in all recessive phenotype offspring?

The organism in question is crossed with an organism that is homozygous for the recessive trait, and the offspring of the test cross are examined. If the test cross results in any recessive offspring, then the parent organism is heterozygous for the allele in question.

What is the gene pair HH?

The root in this word means “same” and they are the same case. HH are both capital and hh are both lowercase. HH is homozygous dominant, because of the capitals.

Is JJ dominant or recessive?

Another gentleman does not possess this gene – instead, he has the recessive jj gene which means his joints bend normally. A boy is born with an extra finger on each hand due to the dominant gene EE, while another newborn with the recessive homozygous ee gene has the normal number of fingers on her hands.

How is inheritance predicted in a monohybrid cross?

In a monohybrid cross, the inheritance of a single gene is predicted because the parents are homozygous whereas in a dihybrid cross the parents differ in two different traits. What is a test cross? A test cross is the breeding of an individual with a recessive individual.

How are the traits of a dihybrid cross determined?

These traits are determined by DNA segments called genes. In a dihybrid cross, the parents carry different pair of alleles for each trait. One parent carries homozygous dominant allele, while the other one carries homozygous recessive allele. The offsprings produced after the crosses in the F1 generation are all heterozygous for specific traits.

Who is the father of cross inheritance in genetics?

Monohybrid Cross – Inheritance Of One Gene. The mystery of genetics was unlocked during the mid-nineteenth century by Gregor Mendel. He conducted an experiment on pea plants by cultivating the pea plants and observing the pattern of inheritance in different stages of generation. Mendel is the father of genetics.

What did Mendel postulate about the monohybrid cross?

Mendel performed seven monohybrid crosses involving contrasting traits for each characteristic. On the basis of his results in F 1 and F 2 generations, Mendel postulated that each parent in the monohybrid cross contributed one of two paired unit factors to each offspring and that every possible combination of unit factors was equally likely.