How do geneticist normally tell whether an organism exhibiting a dominant phenotype is homozygous or heterozygous for such a trait? Illustrate with an example.

Q: Regarding Mendelian inheritance in diploid individuals, (Read each statement carefully. Select all…

A: Ploidy is a term which describe the number of sets of chromosomes in a cell. The term haploid…

Q: How do geneticists know whether a particular trait is caused by the alleles of one gene or by two…

A: A gene is a stretch of nucleotides present in the DNA. DNA or deoxyribonucleic acid is a polymer of…

Q: In humans, the genetic disease cystic fibrosis is caused by a recessive allele (a). The normal…

A: Cystic fibrosis is only caused when both of the mutant alleles for cystic fibrosis are present. AA…

Q: In the snail Cepaea nemoralis, an autosomal allele causing a banded shell (BB) is recessive to the…

A: Cepaea nemoralis is an air breathing species of land snail and also known as grove snail and brown…

Q: Calculate genotypes and phenotypes in monohybrid crosses of traits with non-Mendelian inheritance…

A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…

Q: A standard three-point mapping is conducted for recessive mutations in autosomal genes purple eye…

A: Chromosome mapping first introduce the great scientist T.H. Morgan. By the help of recombinant…

Q: In pedigrees, individuals are usually specified by using a Roman numeral for their generation in the…

A: Cystic fibrosis (CF) is an inherited disorder that causes severe damage to the lungs, digestive…

Q: If a homozygous green leaf is represented by YY and a homozygous yellow leaf is represented by yy,…

A: An organism's phenotype represents its observable characteristics or traits. In this case, YY…

Q: A biotechnology company offers a direct-to-consumer test called the Carrier Status report that…

A: Genetic testing or DNA testing is done to identify errors or changes occurred in a DNA sequence or…

Q: Given these parents-note, they are NOT quite the same as each other!: mom = Aa Bb Cc Dd dad = Aa Bb…

A: The product rule is used in this case. The multiply of each gene is done in this case.  The A gene…

Q: In humans, blood type is controlled by a gene with three alleles, as shown in the following table:…

A: ABO blood grouping refers to the classification of the human blood based on the inherited properties…

Q: i) What is the most likely mode of inheritance for this pedigree? ii) State the genotypes of…

A: In order to study a Pedigree the first and foremost thing which is required is to know the pattern…

Q: In rabbits, the gene for fur color is multiallelic. Agouti (C) is dominant to chinchilla (Cch),…

A: Term Phenotype refers to the observable characteristics or physical properties which can be observed…

Genomic studies

Genomic studies (genomics) is the study of the whole genome of an organism. Using bioinformatics and high-performance computing, genomic researchers examined massive amounts of deoxyribonucleic acid (DNA)-sequence data to discover variations or mutations that affect drug response, health, or disease. Genomics is a much younger discipline than genetics, having only emerged in the last few decades as a result of technological advancements in DNA sequencing and computational biology.