Amorphic mutationseliminate gene activity and behave similar to a deficiency of the locus. Recessive alleles of white (w) that lead to a white eye phenotype are considered to be amorphic. As w dosage increases, the mutant phenotype remains unchanged. Hypomorphic alleles can cause a range of mu...
What does it mean that DNA bases are complementary? What is a mutation that results in the addition of nucleotide pairs in a gene called? What are the complementary base pairs that form in DNA? A) A - U and G - C B) A - T and G - C C) A - G and G - C D) A - C an...
(genetics) Having the same morphology as another chromosome or locus; relating to a homologue. Homologous Playing the same role as seen in another culture, whether by historical connection, psychological archetype, convergent cultural evolution, or otherwise (as may be hypothesized but not known with...
From Wikipedia, the free encyclopedia. A hypostatic gene isone whose phenotype is altered by the expression of an allele at a separate locus, in an epistasis event. Example: In labrador retrievers, the chocolate coat colour is a result of homozygosity for a gene that is epistatic to the "bl...
What does it mean for a gene to be X-linked or Y-linked? What is the major difference between a trait and a gene as defined in genetics? What are the characteristics of genetic code? (a) What is the difference between homologous traits and homoplastic traits? (b) Give an example of...
What is allosteric regulation and how does it affect gene regulation? (a) Explain gene regulation. (b) When does it occur? What is epigenetic regulation of gene expression? What does it mean when we refer to regulation of gene expression? What are the fundamental differences between up-...
Question: What is this 'second-generation' theory of the gene? The second-generation theory of the gene: The second-generation theory entails the filial generation principles in genetics by Gregor Mendel. The filial generation involves crossing two individuals of the first (F1) filial generation. ...
For as yet, unknown reasons, the mutation rate at the NF1 locus is one of the highest reported in any human disorder.4 This observation is reflected in the finding that almost 50% of all NF1 patients exhibit a de novo NF1 mutation. A huge number of different pathogenic NF1 mutations ...
One of the MRP genes seems to be determined by a single mating-type locus [130]. A system based on a single-gene sex determination could potentially have evolved in diatoms. However, more reliable is a system suggesting that two genes are involved, because three genders (males, females and...
Is there dominance in multiple alleles? What does it mean that an allele is "dominant" as opposed to being "recessive?" What are some examples of alleles? How are dominant and recessive traits (alleles) defined? If you have an organism...