A species of antelope has 20 chromosomes per set. The species isdivided by a mountain range into two separate populations, whichwe will call the eastern and western population. In a comparison ofthe karyotypes of these two populations, it was discovered that themembers of the eastern population are homozygous for a largeinversion within chromosome 14. How would this inversion affectthe interbreeding between the two populations? Could such aninversion play an important role in speciation?

Q: The genetic variability of the Giddings children started out asmutations that occurred thousands of…

A: The DNA is the hereditary unit of an organism. The genes are composed of DNA  which is passed on…

Q: CIOSS OU An organism has the genotype a g*/a"g*; qf"/q*f*;rth*+/r*h+. Indicate the correct genes/…

A: Alleles Allele are alternative form of a gene. For example hight is a one gene but is has two type…

Q: . In 1932, H. J. Muller suggested a genetic test to determine whether a particular mutation whose…

A: The rugose gene plays a crucial role in the formation of the correct retinal pattern in the eye. It…

Q: . A true-breeding strain of Virginia tobacco has dominantalleles determining leaf morphology (M),…

A: A gene is the physical and functional unit of heredity. A gene is a sequence of nucleotides in…

Q: In an epic battle, the Green Goblin was able to wound Spider-Man aind collect a samplle of his…

A: Crossing over is a phenomenon that occurs in the linked genes. When the crossing over occurs between…

Q: In Drosophila, M. Green found a singed allele (sn) withsome unusual characteristics. Females…

A: Each gene in the DNA that is coding for a specific protein/trait has two variants called alleles.…

Q: In mammals, more than one chiasma per chromosome arm is an indication that crossing-over has…

A: Chiasma is the point of contact between two non sister-chromatids.

Q: Species I is diploid (2 n = 8) with chromosomes AABBCCDD; related species II is diploid (2 n = 8)…

A: Mutations are variations in codons caused by changes in nucleotides at or near the coding sequence.…

Q: The distance between two molecular markers that are linked alongthe same chromosome can be…

A: so firstly let's understand the sperm genetics wherein the mature sperm is a haploid cell with only…

Q: The distance between two molecular markers that are linked alongthe same chromosome can be…

A: DNA is the genetic element in all cell types of prokaryotic and eukaryotic. DNA is double stranded…

Q: Consider the arrangement of the following four normal chromosomes from some hypothetical organism…

A:

Q: In the experiment described in Figure 4.9, Morgan obtained awhite-eyed male fly in a population…

A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…

Q: Which type of geneticdisease can be identified fromthe visual analysis of thenumber of…

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

Q: A plant of phenotype 1 was selfed, and, in the progeny,there were 100 plants of phenotype 1 and 60…

A: For 160 progeny, the ratio 9:7 should be 90:70, 13:3 should be 130:30,  and for 3:1 it should be…

Q: Let’s suppose that you have made a karyotype of a female fruit flywith red eyes and found that it…

A: As per question, there are three different eye colors X-linked alleles prevailing in the population…

Q: On a camping trip, you find one male snail on a desertedisland that coils to the right. However, in…

A: Introduction  The life starts from single cell called Zygote. A zygote is formed by the fusion of…

Q: On rare occasions, an organism may have three copies of achromosome and therefore has three copies…

A: Nondisjunction is the failure of homologous chromosomes or sister chromatids to separate properly…

Q: . If you intercrossed F1 heterozygotes of the form A b / a B in mice, the phenotypic ratio among the…

A: Understanding the relationship between genes, their inheritance patterns, and their physical…

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: In March 2013, the American Journal of HumanGenetics published a report that an AfricanAmerican man…

A: Evolution is a change over the populations that happened gradually. Species can evolve because of…

Q: F1 hybrids between two species of cotton, Gossypium barbadenseand Gossypium hirsutum, are very…

A: The DNA (deoxyribonucleic acid) is the genetic material that is inherited from the parents by the…

Q: A crossover has occurred in the bivalent shown in figure.What is the outcome of this single…

A: Genetics is the branch of biology which deals with genes, heredity, and genome in the organism.…

Q: Besides the ones mentioned in this textbook, look for other examplesof variations in euploidy.…

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

Q: Fathers contribute more new point mutations to theirchildren than mothers. You may know from general…

A: Each cell possess 23 pairs of chromosomes with 22 pairs of autosomes and one pair of sex…

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A: Genetic recombination is the exchange of genetic material that leads to generation of different…

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

Q: A male Drosophila from a wild-type stock is discovered to have only seven chromosomes, whereas…

A: As mentioned the chromosome IV is attached to the distal end (which is farther from the centromere…

Q: Item 10 10 of 15 A cross in Drosophila melanogaster involved the recessive X-linked genes for white…

A: Three point test cross involves three genes.

Q: Consider the arrangement of the following four normal chromosomes from some hypothetical organism…

A: Chromosomal abnormality or mutation refers to any defect in a chromosome which could either be due…

Q: If you assume Figure 2-15 also applies to mice and youirradiate male sperm with X rays (known to…

A: The similar regions in two chromosomes  are considered to be homologous. Hence the X and Y…

Q: Recessive maternal effect genes are identified in flies (for example)when a phenotypically normal…

A: Drosophila is usually used for genetic studies in the laboratory. The phenotype of the offspring can…

Q: While most animals cannot tolerate polyploidy, somemollusks, such as oysters, can. Although wild…

A: Some mollusks such as oysters tolerate polyploidy. Farmed oysters are triploid while the wild…

Q: Consider the arrangement of the following four normal chromosomes from some hypothetical organism…

A: Chromosomal Inversions:A chromosomal inversion is a type of structural mutation that occurs when a…

Q: A male Drosophila from a wild-type stock is discovered to haveonly seven chromosomes, whereas…

A: In male drosophila, one member of chromosome IV has translocated to the distal end of Chromosome II.…

Q: My son, Declan, has a greater number of Neanderthal variants than either my husband or myself.…

A: Note:- Since you have posted multiple questions, so we will be solving the first one for you as per…

Q: From the pedigree in Figure 3-25, what principle can youdeduce about the inheritance of…

A: Answer : The pedigree shown shows a X linked recessive pattern of inheritance.

Q: In one General Biology 2 class, there were 51% of the students who could roll their tongue, having…

A: Step 1 The genotype is a representation of the genetic constitution or gene complement of an…

Q: On a fox ranch in Wisconsin, a mutation arose that gavea “platinum” coat color. The platinum color…

A: A gene is the essential physical and functional unit of heredity. They are comprised of DNA…

Q: As the number of generations increases in a population, it would be expected that O a. The number of…

A: The process of change in inherited traits within populations over successive generations is known as…

Q: Human geneticists have found the Finnish populationto be very useful for studies of a variety of…

A: Genetic disorders are defects in one or more genes that occur due to mutation, or any other…

Q: An organism described as 2n=4 has the chromosomes below with genes indicated by lette centromeres…

A: Chromosomal aberrations (CA) are the visible part of a large spectrum of DNA alterations are usually…

Q: Which of the following structure a mean of asexual propogation in plants

A: Asexual propagation is the production of new plants from stems, leaves, or roots of a parent plant.…

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.