Q: How Do Meiosis and Union of Gametes Produce Genetically Variable Ofspring?
A: Introduction: In meiosis, a single cell undergoes the process of division twice and result in the…
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A: Cells are the fundamental unit of life. Cell division is the process by which two daughter cells…
Q: What is the number of sex chromosomes in male honey bees?
A: Introduction A sex chromosome is a chromosome that is variable in form, size, and function from an…
Q: Describe how nondisjunction in human female gametes can give rise to Klinefelter and Turner syndrome…
A: Gametes are formed by the process of meiosis.
Q: What are the designations of the sex chromosomes in males of bugs, humans, and butterflies?
A: Chromosomal determination of sex It is also known as allosomic determinati9on of sex and is based on…
Q: What is the probability that, in an organism with a haploid number of 10, a sperm will be formed…
A: Meiosis is a type of cell division where four gametes or daughter cells are produced as a result of…
Q: How does independent assortment, crossing over and random fertilization contribute to genetic…
A: Genetic variation refers to diversity in gene frequencies. Genetic variation can be referred to as…
Q: How does crossing-over affect the genetic content of the haploid gametes?
A: Gametes are produced in organisms through the process of sexual reproduction. Sexual reproduction…
Q: If the 2n chromosome number of an organism is 12: (a) what is the probability of having a spermatid…
A: Probability is equal to number of outcomes divided by total possible outcomes. Diploid number of…
Q: What does the sex chromosome genotype XXY produce in humans?
A: In humans, two sex chromosomes are there; X and Y. The sex of the individual depends upon the…
Q: What does the sex chromosome genotype XXX produce in humans?
A: Human beings have two types of chromosomes found in their body, they are, autosomes and allosomes.…
Q: What is the difference between the X-Y and X-0 systems of sex determination?
A: The biological system that is known to determine the development of sexual characteristics is known…
Q: The Amami spiny rat (Tokudaia osimensis) lacks a Y chromosome, yet scientists at Hokkaido University…
A: Reproduction: Important biological process by which new offspring are reproduced by their parents is…
Q: Are all reciprocal translocations likely to result in sterility? How can one result in normal…
A: Reciprocal translocation is one of the two types of chromosome translocation. Chromosome…
Q: Why are variation possible in progeny of sexually reproduative individuals?
A: Genetic variation refers to differences in DNA sequence found between one individual and another…
Q: What would be the genetic consequences for the gametes and offspring if crossing over occurred…
A: Sexual reproduction ensures diversity in nature. This diversity is mainly achieved due to the…
Q: What are Sex-linkage?
A: Sex linkage is the phenotypic expression of a trait governed by the presence of the mutations in the…
Q: Which, if any, of the following sex-chromosome aneuploids in humans are fertile: XXX, XXY, XYY, XO?
A: Aneuploids are a kind of chromosomal mutations which results in abnormal number of chromosomes.
Q: How does sex determination in the XX-XY system differ from sex determination in the ZZ-ZW system?
A: The determination of sex is done by specific chromosomes In humans and many other animal species,…
Q: Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring…
A: Nondisjunction of X chromosomes during meiosis I will result in four abnormal gametes. Two gametes…
Q: what is Sex-Linked and Sexually Dimorphic Traitsin Humans?
A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…
Q: In certain salamanders, the sex of a genetic female can be altered, changing her into a functional…
A: Salamanders are vertebrates and they belong to class amphibia. Salamanders can survive on both lands…
Q: How does non-disjunction in meiosis lead to numerical chromosomal aberration?
A: Chromosome is the rod shaped, dark stained bodies which are most prominently seen in the metaphase…
Q: What specific observations (evidence) support the conclusions about sex determination in Drosophila…
A: BASIC INFORMATION SEX DETERMINATION It is basically the establishment of the gender of an…
Q: Which sex chromosome (X or Y) carries the gene for eye color in Drosophila? Why?
A: Red eye colour is dominant over white eye colour in drosophila.
Q: How does meiosis maintain the number of chromosomes in a sexually reproducing species?
A:
Q: What is Sex-linkage?
A: Introduction In this question we will discuss about the sex linkage.
Q: What is an allodiploid? What factor determines the fertility of anallodiploid? Why are…
A: Reproduction is the process of the formation of new offspring. The ability of an individual to…
Q: How many different types of gamete can be formed from an organism with the genotype AaBbccDDEeff,…
A: Mendel performed a series of experiments to study the transmission of traits from parents to their…
Q: In C. elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X…
A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…
Q: If each sperm of Species X has 10 chromosomes, what are the numbers of chromosomes and complements…
A: The sperms are male gametes that are produced through the process of spermatogenesis in the…
Q: why is it that a genotype of XXX may not cause any problems for human female?
A: Sex-determination is a biological system that determines the sex of an offspring based on different…
Q: In organisms with the ZZ-ZW sex-determining system, from which of the following possibilities can a…
A: The Sex-determination system helps to determine sexual characteristics in an organism. Sex…
Q: In what way does the position of the heterozygous organism of two genetic loci on the same…
A: Crossing over puts new alleles together in combination on the same chromosome, causing them to go…
Q: two events in meiosis lead to genetic variation and when does each occur?
A: Meiosis is a simple biological process that occurs in the germ cells of sexually reproducing…
Q: How does sex determination in Drosophila differ from sex determination in humans?
A: Sex determination is a method for determining the sexual characteristics within an organism. These…
Q: What are reciprocal classes of gametes and phenotypes ?
A: Introduction In Mendelian experiments, two contrasting characters are crossed to study the…
Q: what are autopolyploids?
A: Chromosomes are structures in the nucleus of eukaryotes that carry genes. Animals and plants have…
Q: How do we know that Drosophila utilizes a different sexdetermination mechanism than mammals, even…
A: A chromosome is a compact form of DNA molecule present in dividing cells. In metabolically active…
Q: What is the difference between primary and secondary sex determination?
A: Sex determination is the act of determining the sex/gender of a person, and this is done by…
Q: What is the formula for a female with a Philadelphia chromosome?
A: Hi, Thanks For Your Question. Answer : The Philadelphia chromosome Is A Specific Genetic…
Q: Distinguish between the Protenor and Lygaeus modes of sexdetermination ?
A: Genetic information is passed from one generation to another via DNA. Inheritance patterns differ…
Q: In elegans, lon-2 and unc-2 are recessive mutations that are 8 map units apart on the X chromosome.…
A: A map unit is defined as the distance between two linked gene pairs where 1% of the products of…
Q: What does the sex chromosome genotype XX produce in humans?
A: The sex determination in an organism is based on the inheritance of sex chromosomes. In almost every…
Q: How is the geneticdetermination of sexestablished in humans?
A: Sexual reproduction is a type of reproduction in which organism under goes different cycles like…
Q: What does the sex chromosome genotype XYY produce in humans?
A: A type of genetic condition where a male has an extra Y chromosome, is called an XYY syndrome. This…
How do the chromosomal mechanisms determining sex differ in the three taxa males of bugs, humans, and butterflies?
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- What are the advantages and disadvantages of the alternation between fertilization and meiosis in sexually reproducing organism?How does non-disjunction in meiosis lead to numerical chromosomal aberration?Describe the XX-XO system of sex determination. In this system, which is the heterogametic sex and which is the homogametic sex?
- How does meiosis maintain the number of chromosomes in a sexually reproducing species?If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gametehave? If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have?If nondisjunction occurs in humans for one pair of homologous chromosomes during meiosis I. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have? If nondisjunction occurs in humans for sister chromatids during meiosis II. The other pairs segregate normally. a) Will any normal gametes result? b) How many chromosomes will each human gamete have?
- How does the role of meiosis in gamete production differ between organisms with a diploid-dominant life cycle and organisms with an alternation of generations life cycle?A sexually reproducing animal has two genes that assort independently, one for head shape (H) and one for tail length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from this organism?In what way does the position of the heterozygous organism of two genetic loci on the same chromosome with respect to each other affect how they are transmitted to gametes during meiosis?
- In the X-Y and Z-W systems of sex determination, which sex is theheterogametic sex, the male or female?What are the designations of the sex chromosomes in males of bugs, humans, and butterflies?Chromosomal nondisjunction of the X chromosome in female gametes of humans means that live offspring can include ________. A) females with XX or XXX, and males with XY or XXY B) females with XX, and males with XY C) females with XX, and males with XY or XO D) females with XX or XXX, and males with XY or XO E) females with XX or XO, and males with XY or OY