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What is it when you have a gene pair that consist of two dominate alleles and two recessive alleles?
The name of the gene pair that consists of a dominant and recessive allele, i.e. (Xx) will be a heterozygous allele. In this situation, the characteristics of the dominant characteristic will mask that of the recessive allele. People have have a heterozygous genotype may be carriers for diseases that reside on the recessive allele.
What is the name for a cross between an individual of unknown genotype and a homozygous recessive?
A cross between a homozygous recessive and an individual of unknown genotype is called a test cross.The homozygous recessive can only pass on a recessive allele to the offspring, and so any recessive in the other parent will show up in the phenotype (detectable characteristics) of some of the offspring.
Name two genetic disorders?
Two genetic disorders are Turner's syndrome and cystic fibrosis.
How is gene expression controlled?
name the genetic disorders
What is the name of the cross that involves the mating of an unknown dominant phenotype plant with a homozygous recessive plant for the same trait?
Test Cross
What is two dominant alleles called?
In eyes, it would be brown is dominant, and blue is recessive. Free earlobe allele is said to be dominant over the attached earlobe allele. When an organism has two dominant alleles for a trait, it is called homozygous dominant. Two recessive alleles for a trait is homozygous recessive.
Are genetic disorders contagious or caused by germs?
Genetic disorders are not contagious because they are caused by changes in a person's DNA that are passed down from parents. They are not caused by germs, which are microorganisms like bacteria and viruses that can be transmitted from person to person.
Name a sex-linked genetic disorder?
Many different disorders are sex-linked. Saying something is sex-linked indicates that the gene causing the disorder can be found on one of the sex chromosomes, certain muscle disorders for example are sex-linked
What is the name of a trait that is masked?
Recessive
What is the name of the condition when a person has inherited the genotype HH?
Homozygous dominant.
What is the name of the trait that is most common in a group?
recessive
What are produced by each parent that are shown along the sides of a Punnett square?
The two separate alleles of each parent. E.g. one parent is Aa and the other is AA. The top side would have 'A' in each column and the left side would have 'A' in one row and 'a' in the other.
