Albinism in humans can be caused by mutations in any one of several different genes. This situation, in which the same phenotype may result from variation in several different genes, is referred to as genetic heterogeneity. Is genetic heterogeneity common? Are most genetic traits in humans the result of variation in a single gene, or are there many genetic traits that result from variation in several genes, as albinism does?

Q: THE MOST COMMON FORM OF ALBINISM, A TOTAL LACK OF SKIN PIGMENT, IS DUE TO A RARE RECESSIVE GENE…

A: Albinism is a genetic condition that results in a lack of melanin the pigment responsible for…

Q: when bred together produced 12 hearting puppies and 4 deaf puppies. What are the genotypes of all…

A: Congenital deafness in dogs (or other animals) can be acquired [caused by intrauterine infections,…

Q: We will examine some human phenotypes that are controlled by a single gene.  For each…

A: Alleles are already form of a gene. Each trait or character is determined by combination of two…

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: Discuss the role of mutation in the origin of genetic polymorphisms. Suppose that a genetic…

A: Mutation is the modification in the nucleotide sequence or deoxyribonucleic acid (DNA) sequence of…

Q: What is meant by the term genetic variation? Give two examplesof genetic variation . What…

A: Genetics is a study of genes, heredity, and genetic variation in an organism. Living organisms…

Q: In mammals, more than one chiasma per chromosome arm is an indication that crossing-over has…

A: Chiasma is the point of contact between two non sister-chromatids.

Q: You discover a new species of butterfly with wing colors ranging from red to blue and everything in…

A: Colour in this species is polygenic trait  This option is correct.

Q: In animals, embryonic lethal mutations can either in zygotic or maternal effect.  In zygotic embryo…

A: DISCLAIMER FOR MULTIPARTSince you have posted a question with multiple sub-parts, we will solve…

Q: Global warming is causing more and more ice to melt each year at far-northern latitudes, exposing…

A: Which of the following is a plausible explanation of how the brown fur trait appeared in these polar…

Q: olydactyly is an autosomal dominant trait that results in the presence of additional digits on the…

A: According to Hardy Weinberg`s equilbrium  p2 + q2 + 2pq = 1 and p+q=1 p = frequency of the dominant…

Q: Albinism is a recessive trait in humans.A geneticist studies a series of families in which both…

A: Exceptions to the Mendelian pattern of inheritance are many in number, which are important to study…

Q: What is the term for situations in which a single functional allele of a gene is unable to mask an…

A: Here, it is required to identify the term for situations in which a single functional allele of a…

Q: Imagine that the blue color of dragonflies is known to be determined by multiple genes. A group of…

A: Large-eyed, multicoloured dragonflies exhibit striking sexual dimorphism, colour transition, and…

Q: What are the different processes that give rise to genetic variation?

A: Genetic variation can be defined as the measure of the genetic differences that occurs within a…

Q: A species of centipede has a haploid chromosome number of 2. Leg length is controlled by a single…

A: Introduction Mendel's law of independent assortment states that the alleles of two (or more)…

Q: A species of centipede has a haploid chromosome number of 2.  Leg length is controlled by a single…

A: Mendel's law of independent assortment states that the alleles of two (or more) different genes get…

Q: One example of non-Mendelian inheritance is uniparental inheritance. Choose the definition of…

A: Non-Mendelian genetics refers to inheritance patterns that do not follow the simple Mendelian…

Q: You are studying cushion plants in New Zealand: the wild-type cushion plan has a wide canopy. You…

A: When the nucleotides sequences in the genome of an organism are altered or changed due to mistakes…

Q: Since we are all so closely related, it is amazing that we see such tremendous diversity in the…

A: The skin, eye, and collagen show great diversity. The skin colors in different regions are different…

Q: An alien species has been discovered; they call themselves the Blobs. Using information they have…

A: We're Working With An Autosomal Locus In The First Case (Thera And Lotka), Which Means It's Not…

Q: If all cells carry the same DNA information, how is it that different cells may carry out different…

A: INTRODUCTION           When the population of organisms made changes in an over generations in…

Q: Recessive epistasis: In a cross between fruit flies that are both double heterozygous for modifier…

A: Mendel's studies in peanut plants suggested that the amount of personal phenotype was controlled by…

Q: OHO does phenylketonuria affect brain developm How does cancer spread from one tissue to anoi How…

A: Population genetic science is that the study of genetic variation among populations, and involves…

Q: Sometimes, genetic make-ups do not show up as traits. Let us assume Jane has beautiful brown eyes.…

A: Given:  Phenotype of Jane's father - blue eyes. Since her father has pure bred blue eyes, he is…

Q: parakeets (Melanopsittacus undulatus) come in many colors. These birds may produce zero, one, or two…

A: When you cross two homozygous individuals, all of the offspring in the F1 generation will be…

Q: Eye colors are passed down through generations, but sometimes genetic variations can lead to…

A: Introduction :- The term "mutants" generally refers to organisms with a genetic mutation, which is a…

Q: The drug tamoxifen has been used to treat some types of breast cancer. Suppose even among female…

A: Breast cancer is one of the most common cancers affecting women worldwide. Tamoxifen, a selective…

Q: Cystic fibrosis (CF) is an autosomal recessive trait. A three-generation pedigree is shown below for…

A: Given: Cystic fibrosis (CF) is an autosomal recessive trait. Normal allele =  F      CF mutant…

Q: SE A PUNNET SQUARE AND SHOW ALL WORK. LIST THE RATIOS FOR THE GENOTYPES AND PHENOTYPES.

A: Every trait passes into an offspring by passing their genes. One trait may come in two or more…

Genome annotation

The technique of linking biological information to genome sequences is termed genome annotation. Gene annotation is the method of identifying gene locations and coding sections. It helps us understand what these genes are doing in the body through establishing structural characteristics and linking them to the actions of various proteins.