What specific observations (evidence) support the conclusions about sex determination in Drosophila and humans?Sort each observation to the appropriate bin. If an observation applies to both Drosophila and humans, sort it to the "Both" bin. If an observation does not apply to eitherDrosophila or humans, sort it to the "Neither" bin.Reset HelpThree sets of autosomesper X chromosomeare required for male fertility.Sex chromosomesare heteromorphic.Maleness is determinedby lack of X chromosomes.Triploid individuals (3n)could be phenotypicallynormal females.XO individuals are male.More than one Y chromosomeis needed for maleness.Diploid XXY individualsare abnormal males.Drosophila onlyHumans onlyBothNeitherSubmitRequest Answer

Answer. Most animals and man plants show sexual dimorphism. In most cases, sex is determined by the…

Triploid individuals (3n) could be phenotypically normal females. Three sets of autosomes Sex chromosomes Maleness is determined XO individuals are male. per X chromosome are required for male fertility. are heteromorphic. by lack of X chromosomes. More than one Y chromosome is needed for maleness. Diploid XXY individuals are abnormal males. Drosophila only Humans only Both Neither

Triploid individuals (3n) could be phenotypically normal females. Three sets of autosomes Sex chromosomes Maleness is determined XO individuals are male. per X chromosome are required for male fertility. are heteromorphic. by lack of X chromosomes. More than one Y chromosome is needed for maleness. Diploid XXY individuals are abnormal males. Drosophila only Humans only Both Neither

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Activity 11 Study this figure which indicates the normal and abnormal chromosomes then answer the following Questions Normal Male karyotype Normal Fema karyotype 》 3 品研明 10 11 12 13 14 15 17 18 88 19 20 Down Syndrom Edwards Syndrom Turner Syndrom 文自真丸 21 11 12 11 12 13 14 15 16 18 13 17 14 17 18 131 19 20 21 22 19 20 21 Xo 1. Compare the number of chromosomes in the Down syndrome with the nor- mal karyotypes explain the difference between them. 2. Which of the karyotyes contains 3 sexual chromosomes? 3. Depending on the karyotyes, how can a patient with Edwards syndrome, Turner syndrome and Down Syndrome be diagnosed? 4. Describe the symptoms of the Down Syndrome, Edwards syndrome andTurn- er syndrome ト

. Down’s syndrome in humans (trisomy 21), with 47 chromosomes in each diploid somatic cell, is characterized by which of the following genetic features? it involves a duplication of only one chromosome it involves a deletion of only one chromosome it involves a duplication of the entire genome it involves a duplication of only one gene it involves a deletion of only one gene
A human protein, MC1R is responsible for telling human cells what type of pigment proteins to produce. One version of MC1R causes cells to make red pigments, while another version causes our cells to make black pigments. The red version causes red hair. The black version causes black hair. The two versions are called O homozygous and heterozygous homologous chromosomes alleles sister chromatids
Edward’s syndrome in humans (trisomy 18) is characterized by which genetic feature? it involves a duplication of the entire genome it involves a deletion of one chromosome it involves a deletion of one gene it involves a duplication of one gene it involves a duplication of one chromosome
DRAW OUT CLEARLY each of these chromosomes labeling as appropriate (demoed in class) The cell has a diploid number of 8 Each pair has a set of linked genes that are located on each end of the chromosome (paternal on left, maternal on right) Pair 1 AB and ab Pair 2 DE and de Pair 3 Fg and fG Pair 4 hI and Hi Show what the chromosomes would look like in G1, G2, TI and TII
Because of non-disjunction in some stocks of Drosophila. melanogaster, about 1 in 65,000 egg cells have two copies of the X chromosome and about 1 in 375 egg cells have no X chromosome. Assuming that meiosis in males is ‘always normal', what is the expected frequency of XXX females and XO males arising from any number of fertilized eggs? Do not be concerned as to whether it is lethal or not.
Somatic cells of chimpanzees contain 48 chromosomes. During metaphase I of meiosis, a chimpanzee cell will contain ____ chromosomes, ______ chromatids, and _______ bivalents. Fill in each blank with the appropriate number (e.g., 48).
Abnormal chromosome division during mitosis can result in 47,XXX syndrome. Which statement regarding 47,XXX syndrome is FALSE? -Those with 47,XXX syndrome have 3 copies of chromosome 47 -Thise with 47,XXX may have interllectual disabilities -47,XXX syndrome occurs only in the female sex -47,XXX results in a mosaic phenotype
number 2
How do the chromosomes in a male human differ from those in a female human? Males have one extra pair of autosomes. Females have one extra pair of autosomes. Males have a Y chromosome, which females lack. Males have two X chromosomes, and females have only one X chromosome.
If X inactivation in humans shuts down extra X chromosomes, why do XXY and XXX individuals display abnormal phenotypes? Group of answer choices Some X linked genes escape inactivation In trisomies, all the X chromosomes are shut down X inactivation can only shut down one X per cell The extra Barr body (condensed X) takes up physical space in the cell
What is true of an X-linked gene but not of a Y-linked gene? O It does not segregate like other genes during meiosis. O It is present in both male and female offspring. O It is expressed in half of the body cells of males or females. O It is only expressed in female offspring.