4. How many sex chromosomes in a normal human karyotype? 5. What are the sex chromosomes in a male, and what are they in a female? 6. What is trisomy?
Q: A man is heterozygous for the two genes A and B. How many different types of gametes can he produce,…
A: *Note: Since you have asked multiple question, we will solve the first question for you. If you want…
Q: 5. This is a pair of homologous chromosomes. The individual is homozygous for gene A and…
A: This is a question about meiosis.
Q: 6. Look at the following pedigree for a given trait to answer the questions below. || 1 B A KEY: O I…
A: According to Bartleby guidelines, only the first three have been answered. Kindly post the remaining…
Q: 9. The male sex chromosomes are В. Х (LT#5) D. XY А. оо С. X 10. Males get their sex-linked traits…
A: Chromosomes are thread-like structures present inside the nucleus of the cells. Chromosome is made…
Q: 7. Which term best describes two chromosomes that have the same types of genes in the same…
A: Genes are the units of heredity that are transmitted through generations. Genes contain the genetic…
Q: 4. Characterize the following human chromosomes as to size and as to position of its centromere.…
A: human chromosome consist of 22 autosomes and 1 sex chromosome.
Q: 2.) The somatic cells in a horse have 64 chromosomes. 1. What is the diploid number for a horse? II.…
A: Chromosomes -- It is a large group of genes which are attached to each other in single linear…
Q: 29. What if any abnormalities do you see in the chromosomes in this karyotype? A. Monosomy 3 B.…
A: Chromosomal abnormalities These occur when there is an extra chromosome or when a section of a…
Q: 1. How many types of twins do exist? 2. What are "semi-identical" twins, and why are they so rare?…
A: When two sperm fertilized a single egg that split into two, then the twins are called semi-identical…
Q: I need help with 8-9
A: Male has XY chromosomes & females have XX chromosomes. While fertilization, zygote gets one…
Q: Mutations can sometimes happen in the sex chromosomes. What is the effects if a female has a missing…
A: Answer :- when mutations happen in sex chromosomes then it effects female has missing sex…
Q: 1. Examine the chromosomes shown below from two people. Then, answer the questions that follow. 88…
A: Note: According to the guidelines, we are supposed to answer only 1 question. Please repost other…
Q: What are the chances that their child will be: 1. a colour-blind male? 4. a normal male? 2. a colour…
A: Red-green colour blindness is a recessive, sex-linked trait meaning it is passed from mothers to…
Q: 7- What type of inversion has break points that flank the centromere? a) paracentric b) O…
A: Inversion is a phenomenon where chromosome rearrangement takes place, breakage and rearrangement…
Q: 1. The Human Genome Project has demonstrated that in humans of all races and nationalities…
A: The Human Genome Project was an international, collaborative research project whose aim was to map…
Q: 2. In the human life cycle, meiosis occurs during the production of 3. In the plant life cycle, the…
A: A diploid organism is an organism that consists of two complete sets of chromosomes (2n) in the…
Q: 6. What is a major difference between genetic maps based on recombination frequency and physical…
A: Genetic map Genetic map is made from the recombinant frequency of genetic marker. Genetic map tells…
Q: 2. How does Meiosis work?
A: The fundamental and active biological process by which a parent cell, after replicating of its…
Q: 7. How is 2n = 6 associated with meiosis? 8. What is the purpose of the process of mitosis? 9. What…
A: # Here I am giving answer of question 7,8 and 9 . Please send questions one by one in the portal.…
Q: 1. How many different chromosomal combinations (genetic variation via independent assortment) can…
A: Introduction :- Meiosis is a process in which the number of chromosomes in a cell is reduced before…
Q: 5. What is the difference between an allele and a locus? 6. Why do forensic labs analyze non-coding…
A: The DNA sample from the crime scene can be amplified, or copied in large numbers using a technique…
Q: Describe how a cross between two closely related organisms may result in genetic problems.
A: Cross or Mating in between closely related organisms is called as inbreeding. This type of breeding…
Q: 1. How many sperms will be formed from 16 secondary spermatocytes? __2. If an organism’s somatic…
A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…
Q: 3. There are 40 chromosomes in somatic cells of the house mouse. (a) How many chromosomes does a…
A: As Per Bartleby Guidelines, only first 3 parts of a question are answered. For further answers…
Q: division? A. process results in variation of organisms B. daughter cells has the same gamete…
A: Meiosis is a process in which a single cell divides twice to produce four cells with half the amount…
Q: 1. How many sets of DNA molecules or chromosomes does a diploid organism have? 2. How many sets of…
A:
Q: 3. What are other types of chromosomal aberrations? List examples for each type.
A: Chromosome is a compact structure of a DNA molecule wrapped around some proteins. It is generally…
Q: what is The random distribution of alleles of unlinked genes into gametes?
A: In genetics, Mendel introduces two laws that describe how the alleles are distributed on progeny.…
Q: Why are organisms that have only a single set of chromosomes (haploid) often more favorable for…
A: NOTE-"As per our honor code, we are authorized to answer only one question at a moment. As you have…
Q: 5. By conducting testcrosses, researchers have determined that corn has ten linkage groups. How many…
A: To determine the genotype, the experiments are done in which organism of dominant phenotype is…
Q: 1. Why is the incidence of trisomy of larger chromosomes rarer than the incidence of trisomy of…
A: A trisomy is an abnormal number of chromosome conditions in which instead of two there are three…
Q: 2 In mammals, males have two different sex chromosomes (X and Y) and females have two similar sex…
A: Sex of an individual human or birds is determined by the presence of specific chromosomes. Usually…
Q: 7. With half the SEX CHROMOSOME (two letters) from each parent, what does the sex chromosome of the…
A: Columbidae could be a bird family consisting of pigeons and doves. it's the sole family within the…
Q: 5) Cystic fibrosis is caused by a gene on chromosome 7 and results in the build-up of mucus in the…
A: Cystic fibrosis or (CF)- it is an inherited disorder that leads to severe damage to digestive…
Q: How do humans maintain the normal number of chromosomes across generations?
A: A chromosome is a genetic material which is made from the DNA molecule. Generally, humans have 46…
Q: 9. Neither Mendelian genetics nor genetic linkage can accurately explain all forms f chromosome…
A:
Q: 1. Compare the number of chromosomes in the Down syndrome with the nor- mal karyotypes explain the…
A: Chromosomes are filamentous bodies present in the nucleus. They are composed of DNA(…
Q: 2. What kind of chromosomal aberration is exhibited by individuals with cri-du-chat syndrome? Down…
A: Chromosomal abnormalities are the type of genetic disorders caused due to the change in one or many…
Q: 3. Show the daughter cells at the end of meiosis. Are those cells genetically identical? 4. All…
A: The onion root cells are at the interphase stage because at this stage the cell grows, replicates,…
Q: 1) What is Dosage compensation as it relates to sex chromosomes
A: As we know, human females are homogametic with chromosomal constitution 44A+XX and males are…
Q: 17. A somatic cell in a human male contains No genes on the sex chromosome Genes on only on sex…
A: Somatic cells are those cells which are found in the body other than sex cells.
Q: 7. Domestic house cats have a diploid chromosome number of 38. How many chromosomes would you expect…
A: Domestic cats have 38 chromosomes. The chromosome number generally refers to the number of…
Q: 1. What are chromosomes and where are they located? 2. How many chromosome do humans have? How are…
A: The genetic material of eukaryotic organisms is highly compressed structures. These are bound with…
Q: 1. How many chromosomes in a normal human karyotype? 2. How many autosomes in a normal human…
A: A cell’s DNA set is called its genome. Most prokaryotes have a single circular DNA chromosome, the…
Q: For part c, do they consider the total sex chromosomes to be 2 or 3?
A: The total number of sex chromosomes in the given karyotype is 3.The human has a total of 46…
Q: 9. What is polyploidy?
A: Chromosomes are found in the nucleus of a cell. They contain the genetic material i.e. the DNA.
Q: If dog’s body cells have 78 chromosomes, how many chromosomes do their gametes have?
A: Chromosomes are composed of DNA and protein. They are the structure formed by higher-order folding…
Q: 3. Pattern baldness is a recessive sex-linked trait. Jake has a full head of hair. His wife Jeannie…
A: It is required to determine the genotype of Jeannie and the chances that the children will have…
Q: 1. What are the sex chromosomes for: Human: male female Pigeon male female
A: The sex termination system varies from organism to organism. It is studied under the domain of…
Step by step
Solved in 2 steps
- Prophase Metaphase Anaphase Telophase8. In alley cats, the coat color is determined by a gene carried on the X chromosome. Genotypes and color are as follows: b X² Females: xbx=yellow xBxb = calico XBXB = black Males: xby = yellow x³y = black A calico cat has a litter of eight kittens: one yellow male, two black males, two yellow females, and three calico females. What is the color of the father of the litter?1. What are the four types of changes in chromosomal structure? 2. Why would you expect a monosomy to be more lethal than a trisomy?
- 1. Why is the incidence of trisomy of larger chromosomes rarer than the incidence of trisomy of smaller chromosomes? 2. What is the relationship between the severity of symptoms and the size of the chromosome involved in the trisomy?7. The sex chromosomes bear alleles for traits, just like the other chromosomes in our bodies. Genes that occur on the sex chromosomes are said to be sex-linked. More specifically, the genes present on the X chromosome are said to be X-linked. Many more genes are present on the X chromosome than are found on the Y chromosome. Nonetheless, those genes found on the Y chromosome are said to be Y-linked. The Y chromosome is smaller than its homologue, the X chromosome. Consequently, most of the loci present on the X chromosome are absent on the Y chromosome. In humans, color vision is X-linked; the gene for color vision is located on the X chromosome but is absent from the Y chromosome. Normal color vision (XM) is dominant over color blindness (X"). Suppose a color-blind man fathers the children of a woman with the genotype XNXN. a. What genotype is the father? . b. What proportion of daughters will be color-blind? c. What proportion of sons will be color-blind?.3. A nondisjunction occurs in the sex chromosomes of a male mouse. What ratio of sex chromosome genotypes would you expect among the gametes in the two following scenarios. Make sure to includethe gamete’s sex chromosome genotype in your genotypic ratio. (A) The nondisjunction of the sex chromosomes occurs only in Meiosis I? (B) The nondisjunction of the sex chromosomes occurs only in Meiosis II?
- 1. How often does XYY Syndrome occur in humans? 2. What are the characteristics of Marfan Syndrome and what famous person had Marfan Syndrome? 3. Can biological females inherit Y linked traits? 4. Which sex chromosome carries more genes?7. The following diagram shows 2 pairs of autosomal chromosomes in a karyotype of a biological woman. Based on the karyotype, a genetic counsellor determined that there is evidence that a translocation occurred between two non-homologous chromosomes. The other 21 pairs of chromosomes are NOT shown in this diagram. Assume no chromosomal aberrations occurred in the other chromosomes. As a student-researcher, the genetic counsellor asks you if you can determine whether the translocation occurred in a somatic cell, germ-line cell, or whether this can even be determined from the figure? Provide an answer and the reasoning for your answer. D3. The letters below represent genes found on different chromosome pairs. Letters that are similar represent one gene found in a pair of homologous chromosomes. Another letter represents another gene found in another pair of chromosomes. Draw how these different pairs of chromosomes behave during meiosis. Use the back of these sheet for your drawings. (a) Cc (b) BbCC (c)DdEe (d) AAbbCc (e) AaBbCcDd How many different* gamete genotypes will be produced by individuals of the following genotypes if all genes shown are on different chromosome pairs. (Indicate the genotypes of each gamete of (a), (b) and (c)) *By different, meaning different chromosome combinations. For example: Ef is the same as fE → these are the same chromosome combinations, even if arrangement as to which is written first, are different.
- 6. Are the X and Y human chromosomes homologous chromosomes? Explain your answer. A. Does the gamete of the human male or female determine the gender of the offspring? B. How does this compare to the Z-W system in birds?15.Hemophilia is a sex-linked recessive condition that results in deficient blood clotting. The disease causes excessive bleeding which occurs spontaneously or upon slight injury. In dogs (as in humans) hemophilia is caused by a defect in a gene on the X chromosome. What will be the results of mating between a normal, noncarrier female dog and a male dog with hemophilia? All of the offspring will be normal, but all females will be carriers. B. All female offspring will be normal and half the male offspring will have hemophilia. C. Half the male offspring will be normal and half will have hemophilia; all females will be carriers. D. Half the female offspring will have hemophilia and half will be carriers, all male offspring will be normal.5.Albinism, lack of pigmentation in humans, results from an autosomal recessive gene Two parents with normal pigmentation have an albino child.(a) What is the probability that their next child will be albino?(b) What is the probability that their next child will be an albino girl?(c) What is the probability that their next three children will be albino?