Hippocrates, an ancient Greek philosopher, explained heredity following a "Pangenesis" hypothesis that was ultimately wrong. What was wrong about this idea?     Because the ancient Greeks did not know about DNA     It failed to explain why children resemble their parents     It would allow for "acquired characteristics" such as baldness in an older parent to be passed to offspring.     It would require that both parents were the same age

Q: Humans only have a few eye colors and only four ABO-based blood types. The same can be said for…

A: Traits are the characteristics that are expressed by an individual based on their genetype. Eye…

Q: Which of the following best describes a pair of homologous chromosomes? a- A pair of chromosomes…

A: Each of the thread-like chromosomes, which are found inside the cell's nucleus and are formed of…

Q: Human communities around the world that are isolated geographically or culturally serve as an…

A: The study of human communities that are isolated geographically and culturally provides utility to…

Q: Answer the following question in the following photo: 1) Which karyotype is from a human from the…

A: 1. Human Karyotype:  - The karyotype labeled as "Animal 2" is indeed from a human.  - The 46…

Q: Everyone in Merida's family has orange hair, which is the dominant trait for hair color in her…

A: Here, dominant trait - orange hair color and recessive trait - yellow hair color.  Genotype of…

Q: In an epic battle, the Green Goblin was able to wound Spider-Man aind collect a samplle of his…

A: Crossing over is a phenomenon that occurs in the linked genes. When the crossing over occurs between…

Q: What are the genotypes of the individuals involved in this cross?

A: Given  Red eye is X - linked chromosomal trait.   Where R is dominant (red) over r (white).  A pure…

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: On a summer trip to the Galapagos you collect two finch species, Geospiza fortis and G. pauper and…

A: Geospiza pauper is also known as medium tree finch, categorized under critically endangered.

Q: This principle examines the conceptual contribution of the scientist who introduced the idea of…

A: Somatic lineage means that the characteristics that are passed on to the next generation are not…

Q: A. bb В. БВ

A: A punnett square is used to determine the phenotype and genotype of progenies of a couple.

Q: Which genotype(s) correspond to a drake with wings, no arms, and no legs? Select all the correct…

A: The objective of the question is to identify the correct genotypes that would result in a drake with…

Q: he hair keratin gene KRTHAP1 was lost in the human lineage. Keratins are a major component of hairs.…

A: Given information KRTHAP1 is the hair keratin gene that was lost in the human lineage. Keratins are…

Q: To what does the term allele refer? Group of answer choices a separate gene at another location on…

A: Gene is the functional unit of DNA. DNA is composed of genes with triplet codons. Genes are the unit…

Q: Labrador Retreivers come in three main colors: yellow, black, and chocolate brown. THe black color…

A: Dogs carry both the TYRP1 and the MC1R genes, not just one of them. Every dog will have two copies…

Q: If it were possible for there to be a hybrid between a human and a chimpanzee the offspring would…

A: Higher level animals are generally diploid in nature, that is, they carry two copies of chromosomes…

Q: Your biologist friend studies genetics of a new lizard found deep in the rainforest. The allele for…

A: In lizard , there are two allele responsible for skin colour : Allele B and allele b Allele B gives…

Q: In March 2013, the American Journal of HumanGenetics published a report that an AfricanAmerican man…

A: Evolution is a change over the populations that happened gradually. Species can evolve because of…

Q: 3 butterflies are crossed with the line 5 butterflies and they produce all extra-long bodies, what…

A: In complementation, parents are either mutated with same genes or mutated in different genes. In…

Q: Organisms heterozygous for a recessive trait are often called carriers of that trait. What does that…

A: Carriers of a trait are always heterozygous, and the trait is always recessive.

Q: What technique was originally used by geneticists to determine that the human traits you observed in…

A: The idea since long has been prevailing that the human traits are inherited in human society. After…

Q: What question is this scientific investigation seeking to answer?

A: Genes are the functional units of heredity. It carries information from one generation to another.…

Q: Which of the following findings supports the fact that the presence of the Y-chromosome rather than…

A: In mammals the sex chromosomes are X and Y. The genotype for a normal female is XX and that of…

Q: This pedigree exhibits a maternal effect. What is the genotype of each individual?

A: Pedigree analysis is useful when identifyig any population when progeny data from several…

Q: What kind of molecular event was likely to have generated thus polymorphism?

A: DNA is deoxyribonucleic acid which is the genetic material responsible for transferring genetic…

Q: As pointed out in the section Evolution of the Y Chromosome, some researchers have predicted that…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: This family lives in Nigeria, along the western African coast. They have tropical monsoons when it…

A: This article provides an overview of the sickle cell trait (AS genotype) and its genetic benefits…

Q: Unlike mammals, birds lack XY chromosomes. Instead, birds have a ZW system, where males have two Z…

A: Chromosomes are the condensed form of genetic material (DNA) that possesses the hereditary units…

Q: In cats, a gene on the X chromosome (X-linked) makes the protein amelogenin, which helps direct the…

A: First of all we will discuss about sex linked disease amelogenesis imperfecta. Some traits of…

Q: Identify two (2) differences between a genetic cross in humans and Mendel's experiments in peas

A: A difference between a genetic cross in humans and Mendel's experiments in peas is s as follows :…

Q: his research exploited the principles of Mendelian genetics combined with the MCR technique to…

A: Mendelian inheritance treats the alleles as independent units. These alleles can be either identical…

Q: Gregor Mendel never saw a gene, yet he concluded that some inherited factors were responsible for…

A: Genetics is the study of gene, genetic variation. Inherited factors are the traits which encode DNA…

Q: Which of the following is true about Mr. Spock’s genotype in relation to the genes for ear shape and…

A: The variations of a gene are called an allele. In a diploid organism, there are two alleles each of…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.