All of the following would be visible on a karyotype except O aneuploidy. polysomy. trisomy. histones.

Q: The map of a chromosome interval in terms of map units is: A 10 20 From the cross Abc/aBC x abc/abc,…

A: Gene mapping is a process through which scientists can evaluate the presence and position of a gene…

Q: Draw two replicated, un-condensed, homologous chromosomes that have the genes A and E on them. This…

A: Homologous chromosomes - Homologous chromosomes is the pair of DNA. These chromosomes are present in…

Q: An inversion heterozygote has the following inverted chromosome:What is the result if crossing over…

A: Introduction Inversion: in this type of chromosomal abnormality there is usually two breaks happens…

Q: A misaligned crossover between two homologous chromosomes usually results in:

A: Crossing over is the process of exchange of gene segments between the non sister chromatids of…

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

A: Meiosis is a cell division through which gametes are produced. One diploid eukaryotic cell divides…

Q: Red–green color blindness is a human X-linked recessive disorder. A young man with a 47,XXY…

A: Color blindness is caused by a X-linked recessive allele. It is most prominant in males as males…

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

A: Chromosomes are carrier of deoxyribonucleic acid (DNA). DNA is the genetic material. Each cell has…

Q: What condition results from the fusion of a normal gamete (n) and a gamete missing a chromosome (n –…

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

Q: Inversion heterozygotes can have a higher probability of producing gametes that are abnormal in…

A: Organism consisting of an one homolog consisting of inverted Segment while another consists of…

Q: Here is a situation in which there is a repeated sequence. This picture shows two homologous…

A: Chromosomal crossover explains the exchange of genetic material while sexual reproduction between…

Q: A person with Down syndrome has three copies of chromosome 21. Which of the following words should…

A: Triploid is used for defining the genomic content of an organism so, here the genomic content is 3n.…

Q: An individual that is homozygous AABBcc is crossed to an individual that is homozygous aabbCC…

A: A chromosome is a highly condensed form of DNA and It wrapped into Nucleosomes. Humans have 22…

Q: When Gregor Mendel was working in the mid 1800s, scientists had not yet discovered chromosomes or…

A: Allele do not show any blending and that both the character are recovered as such in F2 generation…

Q: The birth of this child prompted the Dentons' physician to order a chromosome study of parents and…

A: In order to fully understand the question being asked, we must recall the following information: (1)…

Q: A color-blind woman with Turner syndrome (XO) has a father who is color blind. Given that the gene…

A: Given that the gene for the color-blind condition is recessive and X-linked and a color-blind woman…

Q: The mosquito that causes yellow fever, Aedes aegypti is diploid and has 3 chromosomes. Not…

A: Diploid (2n) organism produce gamate through Meiosis. So the gamete are haploid i.e contain half of…

Q: A normal female is discovered with 45 chromosomes, one of which exhibits a Robertsonian…

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

Q: A phenotypically normal individual has the following combinations of normal and abnormal…

A: Chromosomal deletion is simply deletion of the part of the chromosome. Chromosomal inversion is a…

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: Which of the following events or processes can result in Patau syndrome, Turner Syndrome, or…

A: The gene is the basic unit of heredity. Most of the organisms have Deoxyribonucleic acid (DNA) as…

Q: A fruit fly of genotype B R/b r is testcrossed with b r/b r.In 84 percent of the meioses, there are…

A: Recombination means the method of generating a new blend of genes by crossing over by meiosis…

Q: Explain why autosomal aneuploidy is generally more deleterious than aneuploidy for sex chromosomes.

A: Genetics is a branch of science that deals in the study of genes, heredity, and genetic variation of…

Q: Why inversion heterozygotes produce few if any recombinant progeny.

A: Inversion is a chromosomal rearrangement in which a chromosomal segment is reversed end to end,…

Q: When 23 pairs of human chromosomes are arranged in a diploid set, this layout  is called a

A: A chromosome is a long DNA molecule with part or the entirety of the hereditary material of a…

Q: Abnoral changes in chromosome number are often from the failure of chromosomes to separate during…

A: Mitosis is the process by which cell divides into its daughter cells. It consists of karyokinesis…

Q: Study of how the inheritance of traits encoded by genes on sex chromosomes (sex-linked traits)…

A: In humans sex of the offspring os determined by a pair of sex chromosomes, XX and XY.

Q: Which of the following karyotypic sex chromosome abnormalities result(s) in a male phenotype?…

A: Genetic diseases are caused by mutations in genes.

Q: The following normal human sister chromosomes DO NOT necessarily have in common with each other:…

A: BASIC INFORMATION CELL It is considered as the basic unit of life Every organism is made up of cell…

Q: or each of the following genotypes how many gametes would be made? a. AaBb -  b. AaBbCC -  c.…

A:

Q: In organisms with the ZZ-ZW sex-determining system, from which of the following possibilities can a…

A: Introduction: In ZZ-ZW system of sex determination, female carries two different gametes i.e., ZW…

Q: Alleles A and a are located on a pair of metacentric chromosomes. Alleles B and b are located on a…

A: A gene is the basic unit of heredity. Each gene, in humans, is composed of two alleles. Alleles are…

Q: A normal female Drosophila produces abnormal eggs that contain all (a complete diploid set) of her…

A: Although the two mammals and fruit flies produce XX females and XY male, their chromosomes…

Q: A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. If you need help with other sub…

Q: During the observation of a baby the diagnosis of Down's syndrome was made. What is the main cause…

A: Normally a baby is born with 46 chromosomes.  But in case of down syndrome babies have extra…

Q: For an organism of genotype AaBbCC, which of the following is not an option for a gamete?  ABC, AbC,…

A: The gametes are produced by the process of meiosis cell division process that is a type of cell…

Q: A human karyotype showing 22 pairs of autosomes and two X chromosomes would be O a. a normal male. O…

A: The Sex chromosome(X and Y) originates from a pair of autosomes. Nature can also be defined as our…

Q: Draw two replicated, condensed, homologous chromosomes that have the genes E and F on them. This…

A: Morgan's Theory --Thomas Hunt Morgan (Father of modern and experimental genetics ) ,discovered the…

Q: Phenylketonuria is an inherited disease caused by a recessive autosomal allele. If a woman and her…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: A young couple is planning to have children. Knowing that there have been a substantial number of…

A: Robertsonian translocation is a type of chromosomal abnormality which effects acrocentric…

Q: During a practical, a group of biology students are tasked to study the cell cycle of an insect.…

A: Genetics is a branch of biology involved in the study of genes, genetic variation, and heredity in…

Q: A man with a pointed nose and a woman with a round nose have a daughter with a round nose. This…

A: Given  Round nose - X linked trait  Round nose - dominant  Pointed nose - recessive  Father -…

Q: Transmission of information from cells to cell or from parent to progeny that is not encoded in DNA.…

A: The DNA or deoxyribonucleic acid contain the genetic information that is transmitted from parents to…

Q: Down syndrome is: Trisomy of chromosome 12 Trisomy of chromosome 18 Trisomy of chromosome 13 O…

A: Note: Since you have asked multiple question, we will solve first question for you. To get remaining…

Q: Mendelian Genetics The presence of a dimple on the cheek is governed by a dominant gene. A couple…

A: Heterozygous means that you acquired different versions of a gene from each of your parents. A…

Q: In Question 23, if one chromosome has R and T and the homologous chromosome also has R and T, does…

A: We are authorized to answer only one question at a time, since you have not mentioned which question…

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

A: Crossing over takes place when the chromosomal homologs swap information during the metaphase of…

Q: What process does the following picture represent? XX-88-XX O segregation mitosis O random…

A: What process does the following picture represent? segregation mitosis random assortment  crossing…

Q: A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement…

A: A karyotype is a preparation of the entire set of metaphase chromosomes in a species or individual…

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.