Give explanation  X and Y chromosomes are not homologs, but in meiosis they do pair and segregate in XY organisms to create 50% haploid gametes with an X chromosome and 50% haploid gametes with a Y chromosome. How is pairing achieved?   a. Since all other homologous chromosomes pair, the remaining two chromosomes pair by default.   b Pairing proteins are capable of binding to different genes on the X and Y chromosomes, which allows them to pair.   c. None of the statements is correct.   d. They don't actually pair. Random segregation generally ensures the X and

Q: Which meiotic division(s) reduce(s) chromosome number (i.e., meiosis I, meiosis II, or both)?…

A: Introduction: Meiosis is a eukaryotic cell division methodology. Each of these phases happens in two…

Q: What structures are found in a chromosome? Group of answer choices Two structures for the mitotic…

A: structures  found in a chromosome :  Two structures for the mitotic spindle to bind, and one complex…

Q: The accompanying illustration shows one possible outcome of the random alignment of homologous…

A: Meiosis is a type of cell division in which a diploid mother cell divides into four genetically…

Q: DRAW IT Could any other combinations of chromosomes be generated during meiosis II from thespecific…

A: Meiosis is a double division which occurs in a diploid cell (or nucleus) and gives rise to four…

Q: Inversion heterozygosity occurs in organisms with one inverted chromosome and one noninverted…

A: Paracentric inversion does not include centromere.

Q: What would be the result from a nondisjunction of chromosome 21 in a zygote that is 46,XY? Explain…

A: In genetics, nondisjunction refers to chromosomes or sister chromatids that do not separate properly…

Q: Explain why the homologous chromosomes of an inversion heterozygote can synapse only if an inversion…

A: Frans Janssen, in 1909, discovered Chiasmata. These are the points at which chromatids of homologous…

Q: At the end of Meiosis II in human cells (specifically in males, for example), how many gametes are…

A: In a normal cell there are 46 chromosomes that is 23 pairs of chromosomes are there out of which one…

Q: If nondisjunction occurs in humans for one pair of homologous chromosomes during Meiosis 1, what…

A: Humans have 23 pairs of chromosomes i.e. 46 chromosomes (diploid). After meiosis, each of the gamete…

Q: If zebrafish have a diploid number of 12, what is the chromosome number in the daughter cells of the…

A: Please follow step 2 for detailed explanation.

Q: hromosomes only pair during meiosis. Why is this pairing

A: Cell division is defined as the process by which cells multiply and involve nuclear as well as…

Q: Draw the structure of the acentromeric chromosome using a line and letters to designate loci in…

A: Inversion is one type of chromosome aberration where the chromosome segment is excised and…

Q: the white-eyed w+ gene from one end of the X chromosome locus (w) moves the to a location nearer to…

A: This is an example of epigenetic modification. It alters the gene expression pattern.

Q: You are transported to a fantasy world where legendary creatures actually exist. In this world, a…

A: Unicorn is a bisexual horse with a single straight horn projecting from its forehead. It is…

Q: from the image below). Which of the cells beneath it (cells A, B, C or D) could be a cell from an…

A: The process of mitosis occurs in somatic cell so it is known as somatic cell division. In mitotic…

Q: ) Suppose that in a species of flowering plant, we cross a plant with red flowers with a short stem…

A: Mendel uncovered the fundamental laws of heredity. His experiments demonstrated that the inheritance…

Q: In mice, the Sry gene is located on the Y chromosome very close to one of the pseudoautosomal…

A: The chromosomes are the genetic material present in the nucleus of the cell which is a condensed…

Q: meiosis

A:

Q: If nondisjunction occurs in humans for one pair of sister chromatids during Meiosis 2, what…

A: In chromosome non-disjunction, the segregation of sister chromatids is prevented. It results in a…

Q: Explain why a translocation cross occurs during metaphase ofmeiosis I when a cell contains a…

A: The unusual rearrangement of the chromosomes is more specifically known as the chromosomal…

Q: Which of the following scenarios below can create a gamete with a large deletion of a chromosome?…

A: Deletion is the term used to denote a mutation in which a section of a chromosome is missing.

Q: None

A: AnalysisNotation Interpretation:"42A" refers to the normal autosomal chromosomes (humans typically…

Q: A species has a diploid chromosome number of 6. If a cell from an individual of this species…

A: Meiosis is the cell division which consists of two two stages. First stage is the reduction division…

Q: Assume an individual is of genotype FfGg, with the genes on different chromosomes. The principle of…

A: Mendelian inheritance is a type of inheritance in which traits are passed from one generation to…

Q: What is dosage compensation with respect to the sex chromosomes? Briefly explain how this is…

A: The method by which organisms adjust gene expression between individuals of different biological…

Q: 1. Ten centromeres are observed in a prophase cell from a Sorghum bicolor plant. a. How many pairs…

A: The thread-like structure present in the nuclei of both animal and plant cells is chromosomes. It is…

Embryology