Why can a protein be used as evidence for common ancestry?

Q: How do geneticist normally tell whether an organism exhibiting a dominant phenotype is homozygous or…

A: *To know whether an organisms dominant trait is homozygous or heterozygous for a specific allele one…

Q: Which of the following is an example of how genotype and environmental factors can work together to…

A: The phenotypic expression is basically guided by the genotypic composition of an individual. however…

Q: , why do we need to look at genetics at both organismal and the molecular level?

A: Dominance Dominance is defined as the phenomenon of masking the effect of another trait. The…

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: What is the difference between and Genotypic Trait and a Phenotypic Trait. What do each of them…

A: Genetic material is nothing but the sequence of nucleic acids which is called as DNA. It contains…

Q: What Is Random Genetic Drift?

A: The term genetic refers to the genome present in the cells of an organism. Genome is the complete…

Q: What type of trait is displayed in the pedigree above? Use the methodology discussed in the lecture…

A: Answer 1 . This pedigree shows autosomal recessive inheritance. In autosomal recessive inheritance,…

Q: What is the relevance of a Chi-square test in Genetics

A: A Chi-square test is a statistical way to compare observed results with the expected results. Here…

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: Which traits are analogous or secondarily lost on your tree?

A: Analogous structures are those structures that share similarities in function and superficial…

Q: How can there be more than one possible genotype for an observed phenotype

A: A genotype is a set of heritable genes in an organism that are transferred from parents to…

Q: Why is this factor essential for the dominant allele to “take over” the gene pool?

A: Discoverers of this genetic equilibrium (Hardy) developed this HW equation to show that the dominant…

Q: What is the percentage of the total number of gene copies the allele accounts for?

A: Step 1 Allele frequency refers to how common an allele is in a population. Allele frequency can be…

Q: How do the terms gene and allele, as used here, relate to the concepts of locus and gene pair?

A: Reproduction is one of the most important and basic attributes for all individuals living on the…

Q: Which of the following terms is the most broad?

A: Genetics is a branch of biology which deals with the study of genes, genetic variation, and heredity…

Q: How does sampling error cause genetic drift?

A: Genetic drift is the mechanism of change in allele frequencies in a population from one generation…

Q: How can one use a pedigree chart to hypothesize how a certain condition is transmitted?  Can a…

A: An individual's genotype determines his or her phenotype. The genotype is established by the alleles…

Q: What is the main difference between a homologous trait and an analogous trait?

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: For which reasons, early human geneticists were slow to accept Mendelian analysis?

A: Gregor Johann Mendel was an Augustinian monk. He worked on garden pea for the genetic experiment and…

Q: Why is pedigree analysis important?

A: The genetic disorders can be identified by pedigree analysis. the genes are the functional unit of…

Q: What was the key reason that many biologists found protein better than DNA as a candidate for…

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

Q: What is the difference between a locus and an allele? What is the difference between genotype and…

A: Genetic is the branch of science that deals with genetic material like genome, genes, DNA, and…

Q: How are the alleles of a gene different from each other? What is its importance?

A: Alleles are different variants of the same gene that are genetically different . For example, a gene…

Q: How is developmental homology used as evidence of common ancestry?

A: If anything arises from the one common embryological source, it became anatomically same and hence…

Q: How do we know that threshold traits are actually polygenic even though they may have as few as two…

A: In many polygenic traits, the continuous phenotypic distribution results from an incremental…

Q: Consider Mendelian traits versus polygenic traits. What impact do modifications, such as those…

A: CRISPR-Cas9 has recently become a popular set of tools for genetic engineering. By targeting…

Q: What is the phenomenon of a single gene determining a number of distinct and seemingly unrelated…

A: Introduction: Gene is a segment of DNA that determines the phenotypic characteristics of the…

Q: Can you always ascertain an organism’s genotype for a particular locus if you know its phenotype?

A: To determine: To determine whether it is possible to ascertain an organism’s genotype for a…

Q: What is character polarity? Why is it related to outgroup comparison?

A: According to the question, we have to describe what is character polarity. In addition to that, the…

Q: Does thephenotype of an organism automatically change when achange in genotype occurs? Why or why…

A: In biology, any measurable attribute or trait, whether acquired or inherited, of an organism. An…

Q: What are some codominant traits?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: What are multiple alleles? What is multiple allelism? Give examples to further understand the…

A: Please follow step 2 for detailed explanation.

Q: Why should the term DNA relative replace the more popular term blood relative when referring to…

A: DNA Relatives:                Identifying relatives over any branch of the family tree is recognized…

Q: Sets of basepair sugars that accounts for a specific trait is

A: Bases pairs with sugars, basically it is a DNA segment, codes for a specific protein and that…

Q: What is genetic drift?

A: Introduction In this question we will discuss about the genetic drift.

Q: What is an example of a non Mendelian trait?

A: Non-Mendelian patterns of inheritance are also called the "complicated patterns of inheritance".…

Q: What is genetic polymorphism? What is the source of genetic variation?

A: A sequence variant that has a population frequency of at least 1% is known as polymorphism.

Q: Two genes can interact in which several ways to determine a single trait?

A: Genetic Interaction – The process in which two or more genes interact with each other in order to…

Q: What effect is played by admixture in determination of Race/Ancestry?

A: Admixture determination is a method of inferring someone's geographical origins based on an analysis…

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: How can mitochondrial DNA be used to trace ancestry?

A: Mitochondrial DNA: Mitochondrial DNA is a tiny circular structure that is found inside mitochondria.…

Q: What is one example of a trait and a phenotype of that trait?

A: An organism's physical traits or qualities are known as its phenotype, and they result from the…

Q: How do geneticist normally tell whether an organism exhibiting a dominant phenotype is homozygous or…

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

Q: Are these alleles common or rare in humans?

A: Allele is a variant form of gene, humans can be diploid if they have 2 allele, with each allele…

Q: What are the symbols used in the human pedigree analysis?

A: Pedigree images show the genotypes or phenotypes of a particular organism and its ancestors. These…

Q: a. What kind(s) of heritable trait could Pedigree B be? b. What kind(s) of heritable trait could…

A: Pedigree Analysis The pedigree shows the history of a given trait in the family to analyse its…

Q: What are heterogeneous traits?

A: Genes are the structural and functional units of heredity that carry coded genetic information in…

Q: How would you distinguish a trait caused by a sex-linked recessive allele from one caused by a…

A: Humans and other mammals have two sex chromosomes, the X and Y chromosomes. Females have two X…

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.