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: 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: 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: 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: 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: 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: 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…

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.