Consider three genes L, U, and W, for which the count of F2 phenotypes after a 3-point cross is as follows: Phenotype F2 count:

Q: what proportion of the progeny are expected to be I h/l h?

A: The first F1 is LH/lh, and the second is lH/Lh. They receive one parental chromosome from first F1…

Q: Please label the tetrad type in the table as PD (parental ditype), NPD (non parental ditype) or T…

A: Tetrad analysis:  The tetrad analysis is usually done to determine the distance between the genes…

Q: In sweet peas, gene C or P alone produces white flowers, the purple colour being due to the presence…

A: Dominance is a physiological influence on the same gene locus by an allele over its partner allele.…

Q: In humans, four different blood types (A, B, AB, and O) are encoded by three alleles 1. I. and &…

A: Antibodies and antigens are types of blood proteins that vary from person to person. Antigens are…

Q: Explain at the biochemical or enzymatic level, the phenotypic consequences of alleles incase of…

A: This is the phenomenon called incomplete dominance which is usually seen in snapdragons. In the…

Q: The following results are derived from crosses between Neurospora Tetrad Class 1 2 3 4 xy x+ x+ xy…

A: A tetrad is produced by fungus mainly.

Q: The following pedigree follows the inheritance pattern of sickle cell anemia (b) in a family. What…

A: Sickle cell anaemia is an autosomal recessive disorder. This means that 2 mutated alleles should be…

Q: This pedigree consist of cystic fibrosis that is an inherited disease caused by f a recessive…

A: Cystic fibrosis is a genetic disorder in which the gene that produces the cystic fibrosis…

Q: Please explain to me about Mendel monohybrid crosses and the expected ratio of: A) pure cross B) F1…

A: Mendel monohybrid cross refers to the cross of individuals who are different in only one trait. For…

Q: When a female melanotic fly is crossed with a normal male, the progeny are produced: 123 normal…

A: In the question, it is given that the in the F1 generation, the melanotic progeny is only expressed…

Q: 1) Imagine you discover a new mutant strain of tailless mice. Upon looking closer, you notice that I…

A: A test cross is defined as the method to explore the organism's genotype. Thus, it is an…

Q: Assign a genotype to each individual in generation II. 1 2 3 II 4 7 8 II 9 10 11 12 IV 13 Griffths,…

A: Introduction: Human males carry single copy of X-chromosome and hence allow the expression of…

Q: Consider two maize plants:a. Genotype C/c m ; Ac/Ac+, where cm is an unstable allele caused by a Ds…

A: Ac and C are unlinked, that the chromosome-breakage frequencyis negligible, and that mutant c /C is…

Q: In mice, the autosomal locus coding for the β-globinchain of hemoglobin is 1 m.u. from the albino…

A: Since you have posted a question with multiple sub-parts, we are answering only first one for you.To…

Q: P1 P2 A B C D EE GH 4 (a) Identify which pairs of numbered bands correspond to the two segregating…

A: IntroductionA gene is the basic unit of heredity. A gene exists in two alternative forms called…

Q: What will be the phenotypic ratio for a heterozygous cross between Pp and Pp?

A: An allele is a variant form of a given gene.  Phenotype is the observed physical traits of an…

Q: Two different female Drosophila were isolated, each heterozygous for the autosomally linked genes…

A: Crossing over refers to the exchange of genetic material in the germ line. During meiosis, the…

Q: Define wild-type alleles (+)

A: Wild type allele is the phenotype of the organism that is the product of standard normal alleles.…

Q: Construct a Punnett square using the dihybrid cross TtGg × TtGg. (TT, Tt codes for tall plants, tt…

A: Two laws of Mendel:- 1) Law of Segregation/ Law of purity of gametes- Monohybrid cross. 2) Law of…

Q: Alpha thalassemia is a hereditary blood condition that results in varying levels of anemia. It is…

A: Hemoglobin is an oxygen carrier protein that is made of four chains, two alpha, and two beta chains.…

Q: A fly that is heterozygous at 3 different, independent, autosomal loci (AaBbCc) is crossed to an…

A: The genotype is defined as the genetic constitution or composition of an individual. Thus, it is the…

Q: a) O (black) allele is dominant to the o (orange) allele Black eyes (0/0 or Olo) c) What are the…

A: Scientists utilize genetic markers and monitor their recombination frequency during the development…

Q: The following results are ordered tetrad pairs from a cross between strain cd and strain ++: Tetrad…

A: A ) 1 is NP(non parentals).Beacause all the four spores contians genes at given two loci are…

Q: α-thalassemia is another blood disorder in which abnormal hemoglobin molecules are formed, leading…

A: A )    Hemoglobin Wayne is an alpha chain variation which shows itself as two minor hemoglobin (Hb)…

Q: Consider the following genotype: ● ● ● (P1) A/a BC/bc_D/d E/e FgH/fGh X (P2) A/a BC/bc D/d E/e…

A: Recombination is a process that produces gametes with allele combinations that weren't present in…

Q: What will be the results of the following crosses, where N is black, n is brown, L is short hair and…

A: A dihybrid cross represents the combination of two species that are hybrid in two ways. A…

Q: Several genes in humans in addition to the ABO gene(I) give rise to recognizable antigens on the…

A: The human blood group system is classified using antigens present on the RBC's (Red blood cells or…

Q: SIKE GUČOK BIKE GUSEA Assume that a cross is made between a heterozygous tall pea plant and a…

A: The Chi-Square statistic is used for testing relationships between categorical variables. If it is…

Q: Question 3 +6Probability of producing a child that will phenotypically resemble either one of the…

A: In a cross or breeding experiment, the number of potential genotypes is graphically represented by…

Q: Draw a preliminary linkage map of the three loci. What is their order? (E.g. is the forked locus…

A: A genetic map is a linkage map of a species or experimental population that shows the position of…

Q: wo corn plants are studied. One is resistant (R) and the other is susceptible (S) to a certain…

A: From the cross it is clear that maternal genes are expressed in the offspring. Such a pattern of…

Q: ABO Blood Type The following pedigree shows the incidence of ABO blood types in a family. dentify…

A: ABO Blood TypeThe following pedigree shows the incidence of ABO blood types in a family. Parents: AB…

Q: Cross 1 AaBb x AaBb Cross 2 AaBbCc x AaBbCc a) Please use a branching diagram to find the…

A: A branching diagram, also known as a Punnett square, can help determine the genotypic ratios of the…

Q: A recessive epistasis cross gives in the F2 a 9:3:4 phenotypic ratio. What is the expected…

A: Epistasis: one gene interferes with the expression of the other gene.

Q: The A & B antigens in humans may be found in water-soluble forms in secretions, including saliva of…

A: Antigens are generated in the human body by the allelic activity of the A, B, and O group loci in…

Q: The wild-type (W) Abraxas moth has large spots on its wings, but the lacticolor (L) form of this…

A: The wild type (W) of Abraxas moth exhibit big spots on its wings whereas the lacticolor form (L)…

Q: In an intra-species cross performed in mustard plants of two different species (Brassica juncea and…

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Shown below is a pedigree for Phenylketonuria (PKU), an autosomal recessive metabolic disorder. The…

A: Phenylketonuria (PKU) is an autosomal recessive disorder.  Autosomal recessive trait…

Q: A standard three-point mapping is conducted for recessive mutations in autosomal genes purple eye…

A: Chromosome mapping first introduce the great scientist T.H. Morgan. By the help of recombinant…

Q: The genotypes below that give viable animals for an mdm2+/- p53+/- cross are the following (p53 on…

A: Mdm2 has a regulatory action against p53 gene both of these genes are related to uncontrollable cell…

Q: Hemophilia A is caused by a sex-linked recessive gene in human and in dogs. a. What proportions…

A: Thank you for the question  Answer : Hemophilia is a genetic disorder in which a persons clotting…

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.