A sexually reproducing organism’s body cells contain which two alleles for every gene?

Q: How many pairs of chromosomes do cattle and horses have?

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

Q: If nondisjunction occurs in a chromosome pair, what will be its effect on the gametes and the…

A: Nondisjunction occurs when homologous chromosomes or sister chromatids fail to divide properly…

Q: New combinations of already existing alleles arise from Which two different types of meiotic events?

A: Meiosis is one of the types of cell division parts from mitosis. It is otherwise known as a…

Q: What is random mating?

A: in the entire human populations, partners often tend to choose their mates non-randomly for most of…

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: If children obtain half of their Gene's from one parent and half from the other parent, why aren't…

A: A genome of offspring is inherited from both the parents. Half of the genetic material is inherited…

Q: Why are the linked genes similar to sex-linked genes? Also how are they different?

A: Defination-  Linked genes- These are present close together on the same chromosome. Sex-linked…

Q: What would happen if two monohybridindividuals reproduced?

A: A monohybrid cross is a genetic combination of two individuals with homozygous genotypes, or…

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 is an example of a sex-linked trait in humans?

A: Sex-linked trait refers to a trait whose expression depends on a gene present on a sex chromosome.…

Q: Why are males  more prone to having x-linked recessive disorders? a. Because the y chromosome is…

A:

Q: Explain why genes located on the same chromosome are said to be linked. Why do alleles of linked…

A: A gene is a unit of hereditary arranged in thousands on the strands of DNA(deoxyribonucleic acid)…

Q: Why Sexual is the most important type of variation in human?

A: More variety results from sexual than from sexual reproduction. It is a result of mistakes in DNA…

Q: Why is an X chromosome needed for survival?

A: The sex chromosomes or allosomes are X and Y chromosomes which determine the biological sex of an…

Q: What would be the genotype of the P Generation?

A: Introduction: Genetics is a branch of biology that deals with the understanding of genes, variation…

Q: Suppose synapsis occurred between two homologous chromosomes, and one had alleles for blue eyes and…

A: The genes are the primary unit of life. The nucleotide sequence of the genes are responsible for…

Q: How are linked genes similar to sex-linked genes? How are they different?

A: The term gene was derived from the Greek word meaning generation. It is the basic hereditary unit of…

Q: In humans, what are the random and non-random events in sexual reproduction (post-meiosis) that…

A: Reproduction is the process in which new offspring are produced from the parent. Sexual reproduction…

Q: What characteristic of the sex chromosomes allowed Morgan to correlate their behavior with that of…

A: T.H Morgan showed that genes are present on X chromosomes. These are responsible for hereditary,…

Q: Consider a gamete. How many chromosomes are present and how many alleles of each gene are present?

A: Gamete is a mature haploid male or female germ cell which is formed during meiosis and is able to…

Q: Within the sperm and egg cells of a frog, there are 13 chromosomes.  What would be the diploid #?

A: A frog gamete has 13 chromosomes.

Q: Can two normal individuals of the same species with sexual reproduction have identical genomes and…

A: Sexual reproduction requires gametes. Gametes are produced by meiosis. During meiosis, crossing over…

Q: which are major mechanisms by whichchromosomal rearrangements take place

A: A chromosomal rearrangement is a mutation that is a type of chromosome abnormality involving a…

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: Considering an organism with three pairs of homologous chromosomes, how many different kinds of…

A: Answer : Since there are 3 pairs of homologous chromosomes, therefore  2N = 6 N = 3  to Calculate…

Q: What is the generation of allele combinations through genetic exchange between homologous…

A: The homologous chromosomes are characterized as a set containing both, paternal and maternal…

Q: A human sperm or a human egg each have how many chromosomes?

A: The sperm and the eggs are the reproductive cells present in a male and female body respectively.…

Q: In humans, why is it that the mother determines whether her sons will get recessive sex-linked…

A: Human X and Y chromosomes determine the biological sex of a person. XX specifies female and XY…

Q: What characteristic of sexual reproduction did Mendel investigate that resulted in offspring…

A: Mendel worked with garden pea plants to observe the characters shown in the progeny inherited from…

Q: What does the sex chromosome genotype OY produce in humans?

A: Chromosomes are the unit of inheritance that carry genetic information from one generation to…

Q: Which of the four daughter cells shown at right would produce an offspring with trisomy 3 after it…

A: The correct option is explained below.

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: How many females are wild type?

A: Wild type is a type of gene, genotype or phenotype that is present in the natural strains. On the…

Q: How is heterozygous written?

A: The alternate forms of gene are referred to allele. An allele determines the hereditary…

Q: Which findings support the fact that the presence of the Y- chromosome rather than the lack of a…

A: In many animals including humans, sex is determined by sex chromosomes, which are X and Y…

Q: What is an interrupted mating technique ?

A: Gene is the basic unit of heredity. It is transported from the parents to the offspring. The…

Q: What would be the sex of a human with each of the following setsof sex chromosomes?A. XXX C. XYYB. X…

A: BASIC INFORMATION Humans have 23 pairs of chromosomes out of which 44 are autosomes and 2 are sex…

Q: What does the sex chromosome genotype XO produce in humans?

A: Step 1 Allosomic genetic determination of sex is determined by distinct chromosomes called sex…

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: A black female cat (XBXB) and an orange male cat (X0Y) weremated to each other and produced a male…

A: A calico cat is any breed of cat that has a tri-colored fur. It will mostly consist of a…

Q: Which is an example of pleiotropy?

A: The genetics is the branch of biology that deals with the study of genes, genetic variation and…

Q: Why do individuals with an excessive number of sex chromosomes often show minimum phenotypes?

A: Introduction :- The X and Y chromosomes are found in humans and most other mammals. Males have both…

Q: Chewbacca from Starwars is a part of a species that has 64 chromosomes for its diploid number. What…

A: Chromosomes are the specialized structures that carry the genetic information/genetic material for…

Q: What would be the result if a chromosome did not have a kinetochore?

A: Deoxyribonucleic acid or DNA is the hereditary material present in the nucleus of the cell. It…

Q: What process causes the genetic variation seen in offspring produced by sexual reproduction?

A: Sexual reproduction occurs by the fusion of the male and the female gametes. The gametes are haploid…

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…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.