Which of the following are true about human variation? (Choose all that apply):   Group of answer choices   Genotype refers to how a person looks, through interaction of genes and environment.   Siblings are more like each other, genetically, than they are to either of their parents.   Usually, it is only identical twins (or sometimes triplets or other multiple births) who have identical DNA, and even so, there is still some phenotypic variation between them.   You could have genes for being tall, but if your mother (or even grandmother) had poor nutrition during fetal gestation, you could be shorter than your genes allow.   You can produce taller offspring by stretching and remembering to stand up as tall as you can.

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: Please read the scenario below and answer the question (in bold) that follows: In humans, the…

A: To determine the percentage of their children who would be able to roll their tongues, let's analyze…

Q: Imagine that you are a doctor in a maternity ward. During your last shift, 20 babies were born. 10…

A: Genetics is defined as the scientific study of two major aspects that are genes and heredity. It…

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: A complex trait is a trait that O arises from changes in a single gene. O is not categorical or…

A: Complex traits are also known as Quantitative Traits. These traits are not easily classified.…

Q: Humans can have three different blood types: A, referring to showing the A antigen on the surface of…

A: Blood group is a classic example of deviation from Mendelian inheritance. The gene for blood group…

Q: The ability to roll the tongue into a tube is a single-gene dominant trait governed by the R The…

A: Mendel's Law of dominance : A dominant trait like rolling the tongue into tube is controlled by a…

Q: Heterozygotes can transmit a recessive allele to their offspring but may not pheotypically carry the…

A: Heterozygote is defined as an individual having two different alleles of a particular gene and thus…

Q: About 1 in 100 people has a recessive genetic disorder. What percentage of people would completely…

A: Answer: Recessive genetic disorder is the disorder inherited by a recessive allele form parents to…

Q: Characteristics can be impacted by both genetic and environmental factors. What is one piece of…

A: Like other elements of human behavior and cognition, intelligence is a complex trait that is…

Q: Describe the following (50 words minimum per concept): chromosomes, genes, alleles and traits and…

A: Genetics is a branch of biology that studies genes, genetic diversity, and heredity in living…

Q: What is the definition of homozygous ?     having two identical alleles for a gene…

A: Zygosity can be defined as the degree to which both copies of a chromosome can have the same genetic…

Q: in considering the interaction of multiple genes involved in complex traits and interaction with the…

A: The organism's genotype represents the specific set of genes that it carries. These genes are…

Q: In humans, Huntington's Disease is an autosomal dominant trait. Huntington's Disease has late onset,…

A: The woman who had a father not affected and a mother with Huntington's disease is heterozygous, as…

Q: Please read the scenario below and answer the question (in bold) that follows: Spider-Man and…

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Q: Which one of the following sentences explains why twin studies tend to overestimate the heritability…

A: Heritability studies are fundamental in psychology and genetics, aiming to determine the proportion…

Q: Please read the scenario below; then, answer the question (in bold) that follows. Spider-Man and…

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: Take a look at this family. Each parent has a different color hair, one blond and one brown. The two…

A: Introduction Gene is the functional unit of heredity. We inherit all the characters from our…

Q: Penetrance and expressivity are related but can be distinguished easily because:

A: Answer: PENETRANCE = It is the expression of a particular phenotype , which corresponds to a…

Q: Which of the options listed below could represent the PHENOTYPE of an organism? * O Tt, purple O Rr,…

A: Answer- yellow,tall

Q: Polygenic traits are: Group of answer choices Rare, comprising just a few traits. Most traits are…

A: Polygenic traits are traits that are controlled by multiple genes rather than just a single gene…

Q: Which of the following statements about genes is TRUE? Alleles of genes located on the same…

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

Q: Use the following to respond to the three questions posed below:  The XX proband exhibits the…

A: 1) To construct a pedigree for this family, we'll map out the inheritance pattern based on the…

Q: Please read the scenario below and answer the question (in bold) that follows: Spider-Man and…

A: The answer is (c). Spider-Man can produce SS, SC, sC, and sc gametes.Spider-Man can produce four…

Q: Assume for a moment that a child has a autosomal recessive disorder, but both parents appear normal.…

A: The autosomal recessive is one of the ways to pass down the trait into generations or families. The…

Q: if your phenotype is for a dominant trait, such as curly hair, then your genotype is? a: also for…

A: In genetics, the observable traits of the organisms are known as the phenotype, while the genetic…

Q: In humans, having facial dimples is dominant to not having facial dimples. Mary has dimples, yet…

A: A dimple is an abnormality of the muscle that results in an indentation in the cheek, especially…

Q: The majority of traits are what? (gene number)

A: Gene - A gene is defined as a polynucleotide chain that consists of segments each controlling a…

Q: Which of the following traits in humans demonstrates codominance? height eye color blood types

A: The objective of the question is to identify which among the given traits in humans - height, eye…

Genetic Variation

Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.

Quantitative Genetics

Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.