Which of the following statements regarding X inactivation in eutherian mammals is FALSE? X inactivation may occasionally occur in males (tried this answer but marked wrong) This process produces a uniform phenotype in heterozygous females The process appears to be random X inactivation occurs early in embryonic development

Q: Which two traits on the gene map below for the fruit fly are most likely to cross over together?

A: The physical crossing over during meiosis of parental heterozygous homologous chromosomes or genes…

Q: Generally, sex chromosomes in male mammals are XY and females are XX. Following meiosis and gamete…

A: Meiosis is called the reduction division which divides the diploid germ cell into four haploid…

Q: Which of the following does not help to increase genetic variability in the next generation?…

A: The differences between members of the same species at the genetic level are referred to as genetic…

Q: Which of the following best describes the role of recombination in genetic variation? Group of…

A: Approach to solving the question: To determine the best description of the role of recombination in…

Q: Which of the following statement is false about X chromosome inactivation in mammals? O It only…

A: Mary F. Lyon, a British scientist, identified the mechanism of "X-inactivation". One X-chromosome is…

Q: Wedow et al. (2018) found that genes which predispose an individual towards gay sex:     improve…

A: The reproductive system is the most essential system of the human body. Any change or dysfunction in…

Q: we discuss various mechanisms of sex determination, including the XX/XY system of placental mammals,…

A: Monotremes are egg-laying mammals that are native to Australia and New Guinea. They are the only…

Q: plyploidy?

A: 1) Polyploidy occurs in specialized cell types in many organisms.(true statement) In human body…

Q: The following reciprocal crosses were carried out using snails and analyzing the direction in which…

A: Reciprocal complementary crosses are the crosses where the phenotypes of female and male are…

Q: Having identified the genetic identity of the parent flies female is RrGg and male is Rrgg. (R is…

A: The simultaneous transmission of the two genes involved (eye color and body color) from the parent…

Q: What are the haploid genotypes of the gametes and frequencies/proportions of those gametes that can…

A: Meiosis cell division is the process of generation of two daughter cells that are genetically…

Q: In German cockroaches, bulging eyes, bu, are recessive to normal eyes, bu, and curved wings, cv, are…

A: The likelihood of more inheritance of genes present on the same chromosome than expected is called…

Q: THEME 3: In Drosophila recessive mutants called a, b, c, and d all have the same phenotype; namely,…

A: Wild type individuals result when the Plus sign is indicated and this Plus sign occurs when the two…

Q: Within a diploid animal species, what are potential sources of variation in shared, heritable…

A: Mitosis is equational division, it does not lead to variation. When changes occur in somatic cells…

Q: In marsupials like the opposum or kangaroo, X inactivation selectively inactivates the paternal X…

A: Since we only answer up to 3 sub-parts, we’ll answer the first three. Please resubmit the question…

Q: A cross between two pure breeding pea plants in which one parent produced yellow seeds and the other…

A: Punnet square is the diagrammatical square that helps to determine all resultant combinations of…

Q: describe   Rapid chromosomal evolution in mice on the island of Madeira.

A: Step 1 The origin of species due to chromosome speciation is connected with the phenomenon of…

Q: During the development of an animal embryo, different tissue types like muscle and neurons will…

A: As per our honor code, we are authorized to answer only one question at a moment. So, we are…

Q: Liestion 2 of 15 Macmillan Learning Match each phenotype description to its corresponding sex…

A: The chromosomes that determine sex are known as sex chromosomes. These are known as the X- and…

Q: Please DEFINE the following terms, and explain how they apply to Andean Condors:   Homogametic sex…

A: Andean condor It is a bird of South America bird. It belongs to the family Cathartidae. It is the…

Q: A mutation in the gene "tan" in fruit flies results in a lack of pigmentation. The same mutation…

A: The tan gene in insects regulates metabolism and biochemical characteristics. It gives the colour of…

Q: o mate Drosophila for a lab experiment, you need? 1) virgin female 2)virgin male 3)both male and…

A: NOW a days Drosophila have been used as Model organism. There are various advantages that Drosophila…

Q: 0.3

A: SR = 0.3   Non-SR = 0.7   The probability that a female will mate with non-SR if she mates once:…

Q: Which of the following best describe(s) the process of X-inactivation? Group of answer choices It…

A: Human contains 23 pairs of chromosomes out of which 22 pairs are autosomes and one pair of sex…

Q: in a robertsonian translocation the formation of viable gametes depends on

A: Robertsonian translocations are found in humans in the five acrocentric chromosome pairs (chromosome…

Q: In the life cycle of an animal, __________ are haploid and _________ are diploid gametes/ sex cells…

A: Cell division is the process in which a parent cell divides into two or more daughter cells. There…

Q: Sex determination in birds is different from that in humans. The sex chromosomes in birds are called…

A: Sex ratio is defined as the ratio of males and females in the population. Generally in sexually…

Q: Which of the following will tend to lose genes over evolutionary time due to sex chromosome…

A: In mammals there are two sex chromosomes. One is X and other is Y. In birds, the two sex chromosomes…

Q: Given the results of our calculations of inclusive fitness for male pied kingfishers (Ceryle rudis)…

A: The pied kingfisher (Ceryle rudis) is an African and Asian water kingfisher. It has five traditional…

Q: The human female has two X chromosomes. In which of the following ways will x-linked traits be…

A: X and Y chromosomes are sex chromosomes. The female has two X chromosomes and the male has XY…

Q: Which is a FALSE statement about X inactivation in mammalian females? O Females that are…

A: X-chromosome inactivation is the transcriptional silencing of one X chromosome in female mammalian…