In humans, what are the random and non-random events in sexual reproduction (post-meiosis) that ultimately determine the genetic makeup of the offspring?

Q: What is the gene in the human chromosome that determines the "maleness"?

A: Gene is the sequence of nucleotides that encode a particular protein. The genes are present in the…

Q: Why are newborns with an abnormal sex chromosome number more likely to survive than those with an…

A: Humans have a total number of 46 chromosomes that is 23 pairs of chromosomes in which 22 of them are…

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: What is the role of meiosis? In what ways does meiosis give rise to different genetic combinations…

A: What is the role of meiosis?

Q: Which sex normally contributes the mitochondrial genes to the offspring?

A: mtDNA (mitochondrial DNA) is found in the mitochondria, cellular organelles inside the eukaryotic…

Q: What are two processes of sexual reproduction that produce genetic variation?

A: Genetic variation: Genetic variation is known a the variation in the DNA sequence in our genome. It…

Q: Concerning the sexchromosomes of the XYsystem which type of gametedo the male and the…

A: Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each…

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: How is it that some chromosomal abnormalities are incompatible with life as early as immediately…

A: Chromosomal abnormalities are one of the reasons of miscarriage and stillbirth and spontaneous…

Q: Which of the following correctly describes the gametes that will form as a result of nondisjunction…

A: When the non-disjunction occurs in Anaphase II of meiosis II process then this indicates that one…

Q: How do we know whether or not a heteromorphic chromosome such as the Y chromosome plays a crucial…

A: Sex determination is the foundation or establishment of sex through differential advancement in a…

Q: Which gene on the Y chromosome triggers the development of male characteristics? What would happen…

A: The Y chromosome is one of two sex chromosomes in therian vertebrates, including homo sapiens, and…

Q: Why is meiosis necessary in sexual reproducing organisms?

A: Meiosis: it's another method of cell division which occurs in sexually reproducing organims. Where…

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 does the sex chromosome genotype XY produce in humans?

A: Sex chromosome, either of a pair of chromosomes deciding whether a individual is male or female.…

Q: How is the genetic determination of sex established in humans?

A: There are 46 chromosomes in the diploid human genome, 44 of which are autosomes and two of which are…

Q: Describe one function, brought about by the process of meisos, that spermatogenisis and oogenisis…

A: Common function between spermatogenesis, oogenesis and meiosis :-

Q: What gene normally present on the Y chromosome is responsible for a male phenotypic sex?

A: Sex determination in humans is based on the type of chromosomes present in an individual. Humans…

Q: Male honeybees, which are haploid, produce sperm by meiosis.Explain what unusual event (compared…

A: Meiosis is the reduction division type of cell division in which the original number of chromosome…

Q: How are chain chromosomes formed and will the formation of this result to sterile or fertile…

A: Although seen rarely among vertebrates, chain chromosomes are a phenomenon that can be seen to…

Q: In humans:a. How many sperm develop from 100 primaryspermatocytes?b. How many sperm develop from 100…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: If one follows 50 primary oocytes in an animal through theirvarious stages of oogenesis, how many…

A: Gametogenesis is a process through which male and female gametes (sperms and eggs) are formed in the…

Q: What is crossing over? Howis meiosis related to thisphenomenon?

A: Meiosis : A type of cell division in which parent cell give rise to 4 haploid (n) daughter cells.…

Q: Do the genes of the X and Ychromosomes determine onlysex characteristics?

A: The human cell contains 23 pairs of chromosomes. The first twenty three pairs of chromosomes are the…

Q: What impact does meiosis have on gene copy number and genetic diverstiy in gametes?

A: Meiosis is an extraordinary kind of cell division of germ cells in explicitly repeating creatures…

Q: What are two distinct chromosomes that provide the basis of sex determination?

A: In a biological system, the development of sexual characteristics in an organism is determined by…

Q: If nondisjunction of the sex chromosomes takes place in meiosis I in the male, what sexual…

A: Meiosis is a type of cell division in which a diploid cell undergoes reductional division to form…

Q: When are primary oocytes and spermatocytes produced, and how manygametes result from one diploid…

A: Spermatogenesis as the name suggests is the production of male gametes by the process of meiosis,…

Q: What is crossing over? How is meiosis related to this phenomenon?

A: Linked alleles, such as A-b and a-B, combine to form the gametes A-b and a-B, which are responsible…

Q: Which of the phases of XCI occurs in anadult female?

A: X chromosome inactivation is a gene silencing program on one of the X chromosomes in females. This…

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: How do the chromosomal mechanisms determining sex differ in the three taxa males of bugs, humans,…

A: Mammals belong to the class Mammalia. They are vertebrates. It belongs to the kingdom Animalia and…

Q: During meiosis in male mammals, sex chromosomes segregate to produce two types of sperm: X‑bearing…

A: In mammals sex determination is male heterogametic type in which the male produces two types of…

Q: What is Uniparental reproduction?

A: Reproduction is a biological process through which an organism produces organisms (young ones) of…

Q: a. If cell division during gametogenesis is non-meiotic, what is its consequence to the future…

A: A diploid somatic cell undergoes mitosis. a mitotic division results in two daughter cells which are…

Q: How many polar bodies will be produced by 32 primary oocytes considering that their meiosis II is…

A: Gametogenesis is the process of formation of haploid gametes from undifferentiated diploid germ…

Q: Name two key functions of meiosis.

A: Introduction :- Meiosis is a process in which a single cell divides twice to produce four cells with…

Q: What are the non-random events that occur during sexual reproduction (post-meiosis) in humans?

A: Sexual reproduction is the combination of genes from both male and female parents leading to the…

Q: What is the difference between sex determination in mammals and in Drosophila?

A: Sex determination is the process of identification of different sex that is male and female, in…

Q: What are two important differences between the processes of spermatogenesis and oogenesis in…

A: The process of formation of gametes is called as gametogenesis. In the diploid organism, the gametes…

Q: Why is meiosis necessary for sexual recombinations?

A: In the process of meiosis, a single cell divides twice to produce four haploid daughter cells…