Which of the following statements accurately represents the difference between a gene and a locus? a. A gene is dominant, and a locus is recessive. b. A locus and a gene are essentially the same - there is no difference. c. A locus occurs in diploid cells, and a gene occurs in a haploid cell. d. A locus is a phenotype and a gene is a genotype.

Q: In which circumstance would the two alleles at a locus be the same in all circumstances?  In all the…

A: Organisms contain many genes. There are alternative forms present of a gene, which is known as…

Q: Humans have 23 chromosomes per set. A person with 45 chromosomescan be described as beinga.…

A: Normally, humans have 23 pairs of chromosomes i.e. 46 chromosomes in total. But sometimes, due to…

Q: Which of the following statements does not correctly describe the characteristics of homologous…

A: Homologous chromosomes- Two pieces of DNA, one from each parental source present in a diploid…

Q: How does the process of crossing-over increase genetic diversity? Select one: a. Each gamete…

A: Crossing over occurs during pachytene sub-phase of meiosis-I. The non-sister chromatids of the…

Q: The marking process for genomic imprinting initially occursduringa. gametogenesis. c. embryonic…

A: Genomic imprinting basically refers to the phenomenon of gene expression in a…

Q: C. If the mutant allele in this cross is a recessive, autosomal allele, what phenotype(s) should be…

A: Autosomal trait is present in the autosomes and sex linked trait is usually present on the X…

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: you have found a recessive mutant fruit fly with no antennae. You interbreed this fly with its…

A: The correct answer is- a) only one gene controls antennae development, and the parents of your cross…

Q: Bees have a haplodiploid sex determination.  The recessive allele ivory causes bees to have white…

A: In honeybee, the sex is determined by being haploid or diploid. Here, females are diploid while…

Q: An organism has two chromosomes only. Chromosome 1 has its centromere near one end and carries the…

A: Metaphase of Meiosis IHomologous chromosomes are paired up and aligned along the equator of the…

Q: Which of the following is not true in regard to crossover? a. Spindle microtubules guide the…

A: Crossing over is the process in which genetic material in one chromosome is exchanged with its…

Q: When the phenotype of the offspring is determined by endoparasites in the father it is…   a.…

A: ▪︎Genetics consists of phenomena called  epistasis where the phenotypic effect of alleles at one…

Q: Which of the following is NOT true of Y-linked traits? Select one: a. They are always expressed. b.…

A: XX - female XY - male

Q: In order for a male to inherit a sex-linked (X-linked) disorder, he must receive the allele from: a.…

A: His mother only

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: With regard to linked genes on the same chromosome, whichof the following statements is false?a.…

A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…

Q: Which of the following statements is a lie? Select one: a. Hair color is a characteristic, whereas…

A: Introduction :- Option A is correct  Explanation :- Option A is incorrect Hair colour is one of the…

Q: Which of the below explains why trisomy is better tolerated in humans than monosomy? (Select all…

A: 1. <!--<SUB-PART>--> (a) <!--<SUMMARY-INTRODUCTION>--> To Determine: If the…

Q: diploid individual with two identical alleles for a particular gene is said to be:   a. homozygous…

A: An allele is a variant form of a gene. An organism that has two different alleles of the gene is…

Q: Distinguish between the following genetic terms: A. gene and allele. B. Homozygous and heterozygous.…

A: Gene: It is a nucleotide arrangement of DNA   example: ATCGATCG Alleles: Alternate forms of a trait,…

Q: Which of the following is not a characteristic of X-linked recessive traits in humans?   a.…

A: X linked recessive is a condition caused due to recessive mutant genes located in X chromosomes. In…

Q: During crossing over,a. chromatids of homologous chromosomes exchange parts.b. mutations occur with…

A: Answer- Cells undergo two different types of cell division called as mitosis and meiosis.

Q: In genetic maternal effect, the phenotype of the individual is determined by which of these…

A: Genes located on nuclear chromosome obey mendelian inheritance and are segregated in typical…

Q: If two genes are located on different chromosome types then (a) the mother’s genotype will determine…

A: Assuming that in the above question, the pattern of inheritance follows Mendel’s law of inheritance…

Q: In a trisomic individual, such as a person with trisomy 21 (Down syndrome),a genetic imbalance…

A: Trisomy 21 is a common genetic defect that is caused by chromosomal abnormalities. Trisomy 21 refers…

Q: After genetic selection, some originally diploid species can become triploid, like for example some…

A: Triploidy is referred to as 3n, with 1n is the haploid chromosome number for the species in…

Q: How do we know that X chromosomal inactivation of either the paternal or maternal homolog is a…

A: In mammals females contain two X-chromosomes and males contain one X-chromosome. The differences in…

Q: Which of the following disorders in humans has an X-linked recessive inheritance pattern?…

A: X-linked recessive inheritance refers to genetic conditions associated with mutations in genes on…

Q: #6: You are a young haploid male Honeybee. What is the probability that a gene in your genome is…

A: In honey bees, male is haploid while female is diploid. Such haplodiploidy is observed in some…

Q: What biological mechanism allows humans with an XXX genotype to be healthy individuals?

A: Answer. Option (c) X inactivation

Q: Can chromosome duplications cause negative effects to an organism? Why or why not?   A. No.…

A: In genetics, chromosome duplications can be described as a process that includes mutations causing…

Q: Which of the following statements does not correctly describe the characteristics of homologous…

A: Homologous chromosomes- Two pieces of DNA, one from each parental source present in a diploid…

Q: Which of the following statements is FALSE about x chromosome inavtivation in mammals? A. It relies…

A: X chromosome inactivation is also knows as lyonisation. It occurs in females.

Q: A patient has mental deficiency, a short stature, and the mongolian type of the eyelid fold. The…

A: A pateint has mental deficiency, a short stature, and Mongolian type of the eyelid fold. The…

Q: Genes G and H are located on chromosome 18. A woman with the genotype Gg Hh has a child with a man…

A: Nondisjunction refers to the failure of homologous and sister chromatids to divide.

Q: Which of the following situations does not describes a chromosomal mutation? Select one: a. A…

A: The chromosomal mutation generally means, The whole chromosome or whole gene is affected by any kind…

Q: According to the Lyon hypothesis,a. one of the X chromosomes is converted to a Barr body insomatic…

A: Lyon hypothesis, proposed by Mary Lyon states that the random inactivation of the X chromosome in…

Q: . A woman with Turner syndrome is found to be colorblind (an X-linked recessive phenotype). Both her…

A: Turner syndrome is a chromosomal disorder that impairs women's development. Half of the sex…

Inheritance and Mendelian Genetics

Inheritance means the passing of traits to offspring from parents. These traits could be passed either through asexual reproduction or sexual reproduction. The offspring receives the genetic material from the parents. Mendelian inheritance is a certain biological inheritance that follows the rules and principles laid down by Gregor Mendel in 1865. The initial hypothesis was considered wrong, but other inheritance theories modified the concept of inheritance and thus genetics.