0
A null allele is a mutant copy of gene that completely lacks that gene's normal function. This can be the result of the complete absence of the gene product (protein, RNA) at the molecular level, or the expression of a non-functional gene product. At the Phenotypic level, a null allele is indistinguishable from a deletion of the entire locus.
A null allele is a mutant allele that completely lacks any gene function or has loss-of-function mutations, resulting in no production of a functional gene product. In genetics, null alleles are often used in studies to assess the impact of gene function on an organism's phenotype.
Add your answer:
Earn +20 pts
What is allele masked by the dominant allele?
An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).
Allele that prevents the expression of a recessive allele?
A dominant allele
Is a recessive allele different from a dominant allele?
Yes, a recessive allele is masked or overridden by a dominant allele in a heterozygous individual. This means that the dominant allele's trait will be expressed. In contrast, a recessive allele's trait will only be expressed if an individual has two copies of the recessive allele.
In one allele is dominant to a recessive allele?
In a dominant-recessive allele relationship, the dominant allele will be expressed phenotypically over the recessive allele. This means that even if an organism carries one dominant and one recessive allele for a particular trait, the dominant allele will determine the observable characteristic.
Allele that is always expressed if present?
An allele that is always expressed when it is present is the dominant allele.
If null is compared with null what is the result-true or false or null or unknown?
You mean SQL? NULL = anything IS NULL NULL <> anything IS NULL ... NULL IS NULL = TRUE NULL IS NOT NULL = FALSE
What is allele masked by the dominant allele?
An allele that is masked by the dominant allele is called a recessive allele. When an individual has one dominant allele and one recessive allele, only the trait determined by the dominant allele will be expressed. The recessive allele will only be expressed if an individual has two copies of it (homozygous recessive).
Allele that prevents the expression of a recessive allele?
A dominant allele
How do you get to the null in supersecret?
There is no null, it is just what it says when you log out. There is a null.
An allele that is dominated or cover up by another allele is called what?
An allele that is dominated or covered up by another allele is called a recessive allele. This means that the trait associated with the recessive allele is only expressed when an individual carries two copies of that allele.
What is the alternate form of a gene?
The answer is allele
Can a recessive gene be hidden from a dominant?
The dominant gene will always "cover up" the recessive gene, although there are instances of codominance, in which both phenotypes will be displayed, because one gene is not completely dominant over the other. There is also what is called 'incomplete dominance', when the actual phenotype is somewhere between the two.
How do you pronounce NULL?
"NULL" is usually pronounced as "null" (rhymes with "mull").
What is is null?
main(){ char str[5]="hello"; if(str==NULL) printf("string null"); else printf("string not null"); }
What is the subset of null set?
The null set. Every set is a subset of itself and so the null set is a subset of the null set.
Does foreign key alllows null values and duplicate values?
A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.A foreign can have null values and it can have duplicate values.
When on e allele of a gene masks the presence of the other allele what form is masked?
The recessive allele.
