Q: Explain various types of single gene disorders observed in humans
A: Genetic disorders need to study to find out treatment solutions. Single gene disorders are one of…
Q: describe the Chromosomal rearrangements caused by TEs
A: Transposable elements (TE) or transposons are segments of DNA that can move around the genome. It…
Q: Explain how it is possible for a person with a translocationor an inversion to be phenotypically…
A: Chromosomes are the condensed packaged structure of the genetic material of an organism. The…
Q: Describe some syndromes that result from chromosomal nondisjunction?
A: Nondisjunction of chromosome: - During cell division, it is the failure of separation of homologous…
Q: explain partial tetrasomy 14
A: Tetrasomy is defined as a condition of aneuploidy, in which there are four copies of a particular…
Q: Sover between genes a and E
A: Introduction By adding a third quality, we currently have a few distinct sorts of getting over…
Q: Define mutant allele
A: The genome of an organism consists of the genetic information that is inherited by its offsprings.…
Q: describe some of the human genetic disorders that are caused by nondisjunction?
A: Step 1 Nondisjunction is the non separation of homologous chromosomes during anaphase I that brings…
Q: Give several examples of chromosome number disorders.
A: Genetic disorders are defects that are caused by any genetic mechanism like mendelian genes ,multi…
Q: Explain how nondisjunction can cause monosomy andtrisomy aneuploidy.
A: Failure of separation of Chromosome during nuclear division causes non disjunction
Q: Explain the phenomenon of pleiotropy.
A: Genetics is a branch of biology that deals with genes, heredity, and variation. Heredity purely…
Q: Explain complete and incomplete penetrance and give an example
A: Penetrance is basically the probability of the gene or the trait of being expressed. Despite the…
Q: Explain the features of Y-chromosome profiles ?
A: Introduction Chromosomes are classified into two types: Autosomes and Allosomes/Sex chromosomes.…
Q: Describe the phenotype of individuals who inherit two copies of the Hbs allele Sickle-Cell Disease.
A: Sickle cell anemia (SCA) or sickle cell disease (SCD) is a genetic disorder that occurs due to a…
Q: Explain how nondisjunction produces monosomy and trisomy chromosomeconditions.
A: Mitosis: A type of cell division in which parent cell gives rise to 2 identical daughter cells with…
Q: Describe the expected outcomes of monohybrid crosses involving dominant and recessive alleles
A: Gregor Mendel is known as the Father of genetics and he discovered that traits/ characters are…
Q: Differentiate between pleiotropy and epistasis.
A: A gene is that sequence of DNA that codes for a particular trait, it may or may not be influenced by…
Q: Define what is the Karyotype ?
A: The process in which the chromosomes of an organism are paired and ordered is known as Karyotyping.…
Q: Explain the Pedigree Analysis and Genetic Disorders ?
A: Genetics is a part of science worried about the investigation of genes, genetic variety, and…
Q: Cross a female (XX) with a male (XY). Provide the genotypic and phenotypic ratio of the cross
A: Cross of a female (XX) and Male (XY) Female/Male X Y X XX (Female) XY (Male) X XX (Female) XY…
Q: Discuss the impacts of duplications on phenotype andon unequal crossing-over.
A: The phenotype refers to all the observable characteristics of a living organism. An example of the…
Q: Describe a chromosomal deletion, duplication, translocation, and inversion.
A: Chromosomes are string-like designs situated inside the nucleus of animals and plant cells. Every…
Q: Explain how a testcross can reveal the genotype of an individualwith a dominant trait.
A: The test cross is a tool devised by Gregor Mendel that involves crossing of an individual of unknown…
Q: Explain the consequences of a translocation or an inversion.
A: Translocation: In this, a part of the chromosome is broken and may be joined with non homologous…
Q: Define heterozygous condition for a gene.
A: Introduction: A gene is the basic unit of heredity. It is a sequence of nucleotides present on DNA…
Q: List some syndromes that result from inheritance of anabnormal sex chromosome number
A: Sexual defects in chromosomes are sex-specific. Normal males inherit a chromosome of X and Y, while…
Q: Identify disorders that are associated with sex-linked inheritance.
A: In human beings, sex is determined by a pair of sex chromosomes. In males XY and in females XX is…
Q: Explain allelic series. The C-gene expression (Full color, Chinchilla, Himalayan, Albino) with…
A: The interaction of alleles has a very significant role in determining the phenotype of an…
Q: explain Chromosomal rearrangements caused by TEs
A: Transposable elements or transposons are segments of DNA that can move around the genome. It can…
Q: explain Partial trisomy 18.
A: Chromosomes are defined as the thread-like structures that carry genetic information. In humans, 23…
Q: explain Mosaic trisomy 18
A: Trisomy is a kind of aneuploidy that means an abnormal number of chromosomes. The cells of sexually…
Q: Diagram by Punnett square a cross between individuals with the following genotypes: A/a×A/a; A/a…
A: Punnet square is a visual representation of a cross between the individual where the gametes are…
Q: describe the Phenotypic effects of inversions
A: Chromosomal rearrangements are the mutations in chromosomes that alter the structures of individual…
Q: Recognize progeny ratios that imply the existence ofrecessive lethal alleles.
A: Genes are the fundamental unit of inheritance. They are the governing factors which determines the…
Q: Differentiate between parental ditype (PD), nonparental ditype (NPD), and tetra type (T).
A: The spores are the meiotic products of a yeast. They remain packed in the parent cell to form a…
Q: Explain the Limitations of two-point crosses
A: Answer: Introduction: A two-point test-cross is performed to estimate the recombinant frequency…
Q: Define monohybrid crosses?
A: An allele is a variant of a gene. The allele can be dominant or recessive. The dominant allele is…
Q: Why Phenotypes may show variations in penetrance and expressivity?
A: Genetics is a branch of science that deals with the study of genes, heredity, and genetic variation…
Q: What types of chromosomal disorders are easily seen with a karyotype?
A: KARYOTYPE:- It is the complete set of chromosomes of an individual used to check for any…
Q: discuss briefly The genetics of triploidy
A: Triploidy is a rare chromosomal abnormality. It is the presence of an additional set of chromosomes…
Q: explain Phenotypic consequences of deletion
A: Chromosomal aberrations are changes in the number and arrangement of genes in the chromosomes. They…
Q: Explain the term out-crossing.
A: There are two types of breeding namely, a) In-breeding b) out-breeding The out-breeding further…
Q: Identify the phenotype for each number represented in the 3:1 ratio.
A: The cross is a mono hybrid cross where only one character is considered. Dominant character is…
Q: Differentiate between autosomal genetic linkage and sex linkage. Criteria, Autosomal Genetic…
A: The law of independent assortment asserts that throughout gamete creation, wherein a gene's allele…
Q: identify two main themes underlying the phenomena of chromosomal changes?
A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…
explain the
Duplication of chromosome refers to an addition of an extra chromosomal arm attached to a non-homologous chromosome.
Step by step
Solved in 2 steps with 1 images
- Discuss the mechanisms that lead to erroneous chromosome duplication, mention how they effect the development of Down’s syndrome.briefly describe how chromosomal disorders happen, explaining non disjunctionIll.siven the following pedigree below, use Punnett squares for each of the following possibilities: a) X- linked dominant, b) X-linked recessive, c) Autosomal dominant and d) Autosomal recessive in order to determine what is the mode of transmission of this trait. Disease allele = Xª, x², A or a depending on mode of transmission of the disease respectively. Unaffected X chromosome = X *Homozygous unaffected/No 1 *2 carrier=Normal II 1 *4 1 2 3 6. 7 8 a) X-linked dominant 11x12 b) X-linked recessive I 1 x1 2 c) Autosomal dominant 11x12 d) Autosomal recessive I1x12 IV. Based on your analysis what is the mode of transmission for this disease? O+