Q: Besides the XY system, are there other sex determination systems?
A: XY system of sex determination is found in humans. In humans, males are heterogametic sex and…
Q: The mode of Protenor butterfly sex determination is based on ________. ZW and ZZ for females and…
A: Heterogamety is a condition in which the organism produces different sex gametes. For suppose taking…
Q: Explain how the mouse and the fruit fly differ in the chromosomal control of sex determination.
A: Sex determination is a biological system by which the development of the sexual characteristics in…
Q: Contrast the XX/XY and XX/X0 modes of sex determination.
A: A sex-determination system is a biological system that determines the development of sexual…
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: For the following crosses, you will need to recall that ldeno by cross-fertilization between a male…
A: The fusion of male and female gametes from different organisms that belong to the same species is…
Q: how Autosomal Genes Contributeto Sexual Dimorphism?
A: A normal human has 23 pairs of chromosomes in which 22 pairs are known as autosomes and one pair is…
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: Why is sperm usage biased when femalefruit flies mate twice?
A: Biology is a branch of science that studies about the living organisms. The biology studies about…
Q: a.) The conversion of the genital ridge into the bipotential gonad requires the Sf1, Wt1, and Lhx9…
A: Sex determination : There are certain genes which plays important role in sex determination. But…
Q: Sexual reproduction results in offspring that are genetically different from one another and from…
A: Organisms reproduce to form new generations through sexual or asexual reproduction mechanisms.…
Q: what is the chromosomal system for determining sex in mammals?
A: Chromosomal determination of sex It is also known as allosomic determination of sex and is based on…
Q: What will be the advantage and disadvantage of producing through asexual and asexual method?
A: BASIC INFORMATION ANIMAL KINGDOM It is among one of the five kingdom classified by R.H. Whittaker.…
Q: Sexual dimorphism may have evolved due to
A: Sexual dimorphism : It is the condition where two sexes of the same species exhibit different…
Q: Offspring formed due to sexual reproduction have better chances ofsurvival. Why? Is this statement…
A: Sexual reproduction requires at least two individuals of different sexes. One of them is male and…
Q: What pathway is Fog2 gene product a part of and how does it affect sex determination?
A: Gata4 together with the cofactors Nr5a1 (Sf-1) and Fog 2 (Friend of Gata, 2; also known as Zfpm 2 )…
Q: What is sexual dimorphism? How can you say human beings exhibit sexual dimorphism?
A: Sexual dimorphism is the systematic difference in form between individuals of different sex in the…
Q: Explai sex determination briefly?
A: Sex determination is defined as the establishment of the sex of an organism. It is done usually by…
Q: Draw and label the parts of frog neurulation stages as seen in x.s. and w.m. preparations.
A: Neurulation in frog is a folding process in which the vertebrate embryos which essentially manages…
Q: Explain the chromosomal and genetic control of sex determination in mammals. Clearly establish the…
A: Mammals belong to the class Mammalia. They are vertebrates. It belongs to the kingdom Animalia and…
Q: Identify two organisms that appear similar but have two different mechanisms of sex determination.…
A: Animals with two distinctive sex chromosomes are of heterogametic sex, and they are subsequently…
Q: Which of the following makes sexually reproduced offspring genetically different from their parents?…
A: Genetic variation refers to the differences present in gene sequences between individuals and caused…
Q: List one method that increase the genetic variation within gametes.
A: Gametes are the reproductive cells that fuse to produce a zygote. They are produced by the meiotic…
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: What are the general characteristics of sexual reproduction in humans and other vertebrates that are…
A: Sexual reproduction: it is responsible for the generation of diversity. It is process which occurs…
Q: Is the female in this example pregnant? How do you know? Explain how the graph would change if the…
A: Menstrual cycle Menstrual cycle is a series of natural changes in the hormones level of…
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: Direction: Explain the following in paragraph form consists of at least five sentences for each…
A: Introduction Sex determination is the process, by which the sex of the organism is initially…
Q: Explain the three mechanisms that contribute to genetic variations in sexual life cycle.
A: It refers to the diversity in frequency of gene. It can refer to differences between individuals or…
Q: Describe the technique which is used for sex determination in foetus?
A: Sex determination system is used to determine the sexual characteristics of a developing fetus. By…
Q: Is Barr's Corpuscle a Reliable Tool for Sex Determination?
A: Canine morphology is used for the determining the sex. However aside from this technique, X and Y…
Q: Do all dioecious species have a homogametic and a heterogametic sex? 1. Yes, because dioecious…
A: The sex of a species in which the sex chromosomes are not the same is known as heterogametic sex.…
Q: Outline the molecular mechanism of sex determination in Drosophila and mammals.
A: Sex determination refers to determining the sex of an individual. The sex of an organism is…
Q: Some species, like bees, are haplodiploid: females are diploid and produced from fertilized eggs,…
A: Hymenopteran (ants, bees, wasps) social insect colonies are characterized with the aid of a variety…
Q: What determines sex in birds, reptiles, humans, ants, and bees?
A: In most of the animals, sex is determined by sex chromosomes.
Q: What are the three ways in which sexual reproduction enhances the degree of genetic variability…
A: Sexual reproduction is a type of reproduction in which organism under goes different cycles like…
Q: The duck-billed platypus has a unique mechanism of sex determination: females have five pairs of X…
A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…
Q: Under what circumstances might asexual reproduction be more advantageous than sexual?
A: Reproduction is the process by which an organism produce there offsprings. Actually by the…
Q: In certain salamanders, the sex of a genetic female can be altered, changing her into a functional…
A: According to the question, in certain salamanders, the sex of the genetic female can be altered,…
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: 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: How do chromosomal, genic, and environmental sex-determining systems differ?
A: Small nucleotide stretches present on DNA molecules that encode information for the synthesis of…
Q: Differentiate histologically the female reproductive organs of the various species: ORGAN Bitch…
A: *Bitch is the female of the canine kind as dog and wolf and fox. * ovary of Bitch located caudal to…
Q: Why does the mode of fertilization correlate with thepresence or absence of male parental care?
A: The reproductive system is a combination of sex organs that functions in a synchronized manner in…
Q: Which of the following is NOT one of the events leading to male sex-determination in humans? The…
A: Answer ; wolffian ducts are degraded. - if wolffian ducts are degraded then mullerian hormone is…
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: 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: Describe the major difference between sex determination in Drosophila and in humans.
A: Drosophila melanogaster refers to the fruit fly which is widely used in genetic research as it has…
Q: Explain the following in paragraph form consists of at least five sentences for each question.…
A: Hermaphroditism is the process in which both the types of reproductive organs are present in the…
what might be the disadvantage to temperature-dependet sex determination?
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