A horse has 64 chromosomes and a donkey has 62 chromosomes. A cross between a female horse and a male donkey produces a mule, which is usually sterile. How many chromosomes does a mule have? Can you think of any reasons for the fact that most mules are sterile?

Q: Could there be any significance to the fact that the crosses concern genes on a very small…

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

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: thought 2 was 4%? Why is telophase 5%?

A: Mitosis The the mechanism by which somatic parent cells divide into two exact copy of daughter cell.

Q: Your friend is convinced his calico cat is male. He takes the cat to the vet. Sure enough the cat is…

A: A calico cat is a homegrown cat of any variety with a tri-variety coat. The calico cat is generally…

Q: True or False On Average, half of the gametes produced by one or more crossovers between non-sister…

A: Recombination is the process by which meiosis produces gametes with different allelic combinations…

Q: I have a doubt, I'm not sure if the chromosomes are a boy or a girl? Or if the chromosomes have any…

A: Monosomy is an aneuploidy in which only one of a pair of chromosomes is present. When a section of…

Q: Mules result from a cross between a horse (2 n = 64) and a donkey (2 n = 62), have 63 chromosomes,…

A: Meiosis is the process through which gametes are formed. It includes a reduction in the number of…

Q: Why are there no humans with monosomy 22? because chromosome 22 is very small, it is very stable and…

A: The correct option is shown below.

Q: Raj Kumar and his wife Sunita have been blessed with a baby girl. On the other hand, Kripa Shanker…

A: Reproduction ensures the continuity of species on earth. It can occur in two ways that is sexual…

Q: Some people compare a homologous pair of chromosomes to a pair of shoes. Explain the similarity. How…

A: Homologous pairs of the chromosome are those chromosomes which have the same type of structure and…

Q: Look at the X-chromosome fact sheet. About how much bigger than the Y chromosome is the X…

A: The X chromosome is considerably larger than the Y chromosome, both in terms of physical size and…

Q: A cat is born with two X chromosomes and one Y chromosome. One of the X chromosomes carries the…

A: The fur color of the cats are generally controlled by genes present on the X-chromosome. One form of…

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: Why is random assortment of chromosomes necessary? What can we expect if this does not occur?

A: When reproductive cells mature, the Principle of Independent Assortment outlines how various genes…

Q: Would you assume that the length of a chromosome might have anything to do with the number of…

A: The chromosomes are duplicated during the process of cell division. The process of  cell division…

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: In your own words, explain why a testcross cannot produce more than 50% recombinant offspring. When…

A: The external appearance of an individual for any trait is called phenotype for that trait. For…

Q: How many Barr bodies would you expect to see in a human cellcontaining the following chromosomes?…

A: BARR BODY It is a small, densely staining structure in the cell nuclei of females, consisting of a…

Q: Figure 1. Showing a homologous pair of chromosomes that carry two linked genes. Here we can see that…

A: Alleles are two forms of the gene. If two genes are linked, their independent assortment during…

Q: What does an extra 22 chromosome mean?

A: Chromosome is the DNA molecule with part or all of the genome (genetic material) of an organism. In…

Q: Does mitotic recombination occur in a gamete (sperm or egg cell) or in a somatic cell?

A: Cell division is typically a part of a broader cycle of cells. There are two distinct forms of cell…

Q: This pedigree exhibits a maternal effect. What is the genotype of each individual?

A: Pedigree analysis is useful when identifyig any population when progeny data from several…

Q: Part C is actually 13 chromosomes in a cell of a pea plant that is monosomic for a single…

A: Chromosomal abnormality is a condition in which there is alterations in chromosome number and…

Q: approximate and base pairs) between the largest and s

A: Chromosome- A structure found inside the nucleus of a cell is refers as the chromosome.  It is made…

Q: e sex chromosomes the smallest chromosome in a karyogram? if not, the

A:

Q: You are an allele on a single uncondensed chromosome in a Yellow fever-carrying mosquito (Aedes…

A: The somatic cells follow the mitotic process for division and the reproductive cells or gametes are…

Q: You have set up a fly cross between red-eyed male flies and white-eyed female flies. Several days…

A: The objective of the question is to determine the most likely location of the gene for red eye color…

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: If a father has Marfan syndrome, but the mother does not, and he passes the disease down to only…

A: Answer :- Marfan syndrome is a rare genetic disorder characterized by a variety of symptoms,…

Q: Can someone explain this? When you cross female flies with white eyes to male flies with red eyes,…

A: Cross occurs between white eyes females XwXw x red eyes males XWY. Red is a dominant character over…

Q: Sue's chromosome #18 pair looks like this: Bob's chromosome #18 pair looks like this: Bob and Sue…

A: In non disjunction, there is failure in separation of chromatid. This non disjunction can cause…

Q: Which of the following is true for autosomal recessive alleles associated with a disease? One copy…

A: Traits can be autosomal or sex linked and dominant or recessive.

Q: A cross between two heterozygous individuals in one gene resulted in one phenotype, explain?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: With 46 chromosomes in a human diploid cell, how many chromosomes come from the person’s mother and…

A: A haploid cell has one complete set of chromosomes.

Q: Although there can be individuals born with only a single X chromosome, there are not individuals…

A: The X chromosome is one of the two sex chromosomes in humans (the other is the Y chromosome). It is…

Q: Rainbow trout go through a unique genetic reproductive process. Female eggs are diploid, while male…

A: Chromosomes are thread-like structures present inside the nucleus of the cell. Usually, they are…

Q: between homologous chromosomes and non-sister chromatids woulo lead to a reshuffling of alleles.…

A: Sexual reproduction leads to infinite prospects of genetic variation. In different words,…

Q: Rainbow trout go through a unique genetic reproductive process. Female eggs are diploid, while male…

A: (Comment : As per the guidelines, we are allowed to answer one question at a time, so I am answering…

Q: In 1-2 sentences and in your own words, define the term recombination

A: Recombination in biology is an important word. It is required for creating variations in the gene.

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.