we learned that the two chromosomes of a homologous pair carry information for the same characteristics but are not identical, having different alleles. Would you ever expect the two chromosomes of a homologous pair to be identical? If so, how might that occur? If not, why not?

Q: Chimpanzees, gorillas, and orangutans all have 48 chromosomes, whereas humans have 46. Human…

A: When a part of a chromosome breaks off and gets translocated to another chromosome, leading to…

Q: A wild-type fruit fly (heterozygous for gray body color and wings) mated with a black fruit fly with…

A: Need to find the recombination frequency between the two genes.

Q: You now take an F1 female and cross her to a true-breeding black, wingless male. What is his…

A: Given DataB for Brownb for BlackW for normal wingsw for wingless.I am takingB = Ab = a W =Ww =…

Q: Which of the following best describes a pair of homologous chromosomes? a- A pair of chromosomes…

A: Each of the thread-like chromosomes, which are found inside the cell's nucleus and are formed of…

Q: Two phenotypically normal parents produce a phenotypically abnormal child in which chromosome 5 is…

A: The scenario described is indicative of a rare genetic condition known as unbalanced translocation.…

Q: Raj Kumar and his wife Sunita have been blessed with a baby girl. On the other hand, Kripa Shanker…

A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual…

Q: Blank are chromosomes with the same genes but potentially different alleles while blank are exact…

A: Chromosomes are thread-like structures that become visible during the process of cell division.

Q: Gene A (alleles A & a) is 26 map units from Gene B (alleles B & b) and, on another chromosome, Gene…

A: Linked genes and recombination A recombination is an event in cell division in which the swapping of…

Q: You are trying to determine whether a horn shape (curved = dominant, straight = recessive) in cows…

A: A Test Cross is performed between one unknown genotype and one true-breeding recessive genotype to…

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: What gamete must be donated by the father monster, and what is its probability? a) g l — 12.5% b) g…

A: Gametes are produced by the process of meiosis.

Q: A cat is born with two X chromosomes and one Y chromosome. One of the X chromosomes carries the…

A: The fur color of the cats are generally controlled by genes present on the X-chromosome. One form of…

Q: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?

A: When reproductive cells mature, the Principle of Independent Assortment outlines how various genes…

Q: In humans, hemophilia is a recessive trait carried on the X chromosome. Imagine that a couple, Mike…

A: In sexually reproducing organisms the gamete formation occurs by meiosis process that ultimately…

Q: As stated in Solved Problem 2, recessive mutation in certain mice called waltzers causes them to…

A: The waltzing female that arose by crossing waltzers and normals is showing recessive genes. It is…

Q: Erminette fowls have mostly light colored feathers with an occasional black one, giving a flecked…

A: In this question, we are given a total progeny of 48 out of which 22 are Erminette, 14 black and 12…

Q: Let’s suppose gene A and gene B are closely linked to each other. An AaBb individual (with the…

A: Given,  gene A and gene b are linked closely to each other. An individual with genotype AaBb is…

Q: On average, what proportion of the genome in the following pairs of humans would be exactly the same…

A: Every living species have two types of cells, somatic cells (diploid) which are responsible for…

Q: Which statement about the relationship between genetic map and physical map is FALSE? The…

A: Genetic Map: A genetic map, also referred to as a linkage map, illustrates the relative positions of…

Q: Question 4 Which of the following behaviors of chromosomes explains Mendel's first law (law of…

A: Mendel proposed three laws to understand the biology of inheritance Law of segregation is one of…

Q: The other difference in alleles stems from the fact that our 23rd chromosome pair is unique. This…

A: Sex chromosomes determine the sex of an organism. An individual with XX- will be a girl. An…

Q: g Has 39 päirs of chromosomes, a wolf has 39 pairs of chromosomes, but a red fox has only 17 pairs…

A: Chromosomes are long thread like structures present in the nucleus of all the cells.

Q: Red foxes are a species that has genetic sex determination similar to humans, where females are XX…

A: Dominant genes has quality  that they doesn't need the presence of a comparable gene in the gene…

Q: You are doing a genetics experiment with Drosophlia melanogaster, the fruit fly. In the "P"…

A: Given- 1. The female Drosophila is brown and wingless. 2. The male Drosophila is black and normal…

Q: You are attempting to map the chromosome of a silk moth. You know that red eyes and white banded…

A: Linkage is a phenomenon which determines how genes are present in close proximity to the body, but…

Q: What are linked genes?  What is the difference between tightly-linked and loosely-linked genes?

A: Genes which get inherited In conjunction with other genes and are found on the same chromosome is…

Q: How is it still balanced if, let's say we have 100% chromosome A and 100% chromosome B. In simple…

A: Translocation is a phenomena in which genetic material is transferred from one chromosome to be…

Q: Assume for a moment that crossing-over did not occur. Would you agree that you received half of your…

A: Crossing over is a phenomenon that develops in novel gene combinations by transferring and swapping…

Q: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two…

A: For a certain chromosomal region, the mean number ofcrossovers at meiosis is calculated to be two…

Q: Vestigial wing is a recessive autosomal mutation in the fruit fly Drosophila melanogaster. Wild-type…

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

Q: On an episode of the science fiction television program Doctor Who, the “Progenation Machine” can…

A: Independent assortment of ghromosomes ensure the production of natural recombination. As described…

Q: How many different types of gametes with respect to the R and B genes can an individual with the…

A: An individual with the genotype Rrbb has two alleles for the R gene (R) and (r) and one allele for…

Q: Unlike mammals, birds lack XY chromosomes. Instead, birds have a ZW system, where males have two Z…

A: Chromosomes are the condensed form of genetic material (DNA) that possesses the hereditary units…

Q: Sex determination in birds is different from that in humans. The sex chromosomes in birds are called…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: The duck billed platypus is an unusual mammal. If you examine the sex chromosomes of a female…

A: The duck-billed platypus is an unusual, unique mammal, a member of the order Monotremata that is…

Q: A cytogeneticist has collected tissue samples from members of a certain butterfly species. Some of…

A: There are two sets of butterflies in the given question: the Canadian and Mexican groups. By using…

Q: Three enzymes are part of a sequential pathway that produces a pigment that makes flowers red.  Each…

A: Question -Three enzymes are part of a sequential pathway that produces a pigment that makes flowers…

Q: Suppose genetic analysis reveals a serious mutation in a gene in the green region of the left-hand…

A: Chromosomes are filamentous bodies present in the nucleus. They have the ability of self-replication…

Q: Discuss the following concepts: (a) homologous chromosomes x ½ = 2) (b) diploidy (c) haploidy

A: Chromosomes are defined as the bundles or groups of tightly and highly coiled DNA located within…

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.