ds. QUESTION 9 For each of the following chromosome combinations in humans, what is the phenotypic sex (male or female) df an who has: a. XXY with the SRY gene deleted? b. XO with a copy of SRY on the X chromosome?
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- Od. Sodium ions O e. Carbon dioxide molecules The diploid number of chromosomes in a certain animal is 8 (2n 8). How do the four pairs of homologous chromosomes align and separate during meiosis? O a. They align and assort independently to form any of 16 different combinations O b. All 16 chromatids move together O c. Exactly two maternal and two paternal chromosomes always move to each of the two poles O d. The first to move influences all the others O e. All of the maternal chromosomes always move to one pole, and all the paternal chromosomes always move to the other pole e here to searchQuestion : if our society the women are often blamed for given brith to daughters .can you explain why this is not correct ?(or) justify the fact that in human beings , sex of the child is determined by father , not by mother .? Answer ; All human being's have 23 pairs of chromosome .Human males have 22 pairs at autosomes and coutain one or two types of sex chromosome .they are either X And Y .on contrary, females have 22 pairs of autosomes and contain only the X sex chromosome .the Sex of an individual is determined by the type of the male gametes (X or Y) , which fuses with the X chromosome of the female. Ic the fertilizing sperms is X , then the baby will be girl and if it is Y, then the baby will be boy .Hence , it is incorrect to blame a women for the gender of the child.ipie nelIX them. QUESTION 3 Nondisjunction is rare. Which of the following is FALSE? O A. Nondisjunction is when chromosomes separate properly in meiosis. O B. Nondisjunction is when homologous or daughter chromosomes stick together and move to the same pole. O C. Nondisjunction results in some eggs or sperm with too many chromosomes and some with too few chromosomes. O D. In humans, eggs and sperm made from nondisjunction can have 22 or 24 chromosomes, instead of the normal 23. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save. MacBook 000 000 F7 吕0 F6 F5 F4 F3 F2 F1 &
- Equalizing the Expression of X Chromosome Genes in Males and Females Individuals with an XXY genotype are sterile males. If one X is inactivated early in embryogenesis, the genotype of the individual effectively becomes XY. Why will this individual not develop as a normal male?Analysis of X-Linked Dominant and Recessive Traits The X and Y chromosomes are structurally and genetically distinct. However, they do pair during meiosis at a small region near the tips of their short arms, indicating that the chromosomes are homologous in this region. If a gene lies in this region, will its pattern of transmission be more like that of a sex-linked gene or an autosomal gene? Why?. A mature female wolf, with 78 diploid chromosomes in each somatic cell, produces haploid oocytes (egg cells) containing how many chromosomes per cell? 1 sex-determining chromosome (Y) and 38 autosomes 2 sex-determining chromosomes (XX) and 76 autosomes 1 sex-determining chromosome (X) and 39 autosomes 2 sex-determining chromosomes (XY) and 76 autosomes 1 sex-determining chromosome (X) and 38 autosomes
- The Karyotype • Karyotype [KAER-ee-oh-tihp]: To prepare a karyotype: A cell sample is collected and treated to stop The sample is stained, which produces chromosomes that is clearly visible under a microscope Chromosomes are and The autosomes are numbered, labelled as K » X }( 13 . 19 ❤. 15 20 {{ 10 16 21 on the and the sex chromosomes are 25 12 K= during 22 12 18 Su X/YOnly some cells derive from a mitosis event.. 1. Which statement is most correct regarding the difference between mitosis and meiosis? O Meiosis can produce any cell type, while mitosis can only make gametes (sperm/egg cells) * Mitosis essentially clones a cell (makes an identical copy), while meioisis is a ma O complex process that divides up a cell's set of chromosomes into gametes (sperm/egg cells) ODNA replication is required for mitosis but not for meiosis ODyads are seen in mitosis but not meiosis 2 What distinguichon honTrue or False. 1. a.) A diploid organism with 2N=8 would have 4 chromosomes in each gamete. b.) Homologous chromosomes do not pair up during asexual cell division. c.) Gametes have the same number of chromosomes as a somatic cell. d.) Cell division would not be possible without the work of DNA Polymerase. Pick one of the FALSE statements from the 4 previous questions and explain why it is incorrect.
- Need help with the diagram The STR DNA marker DS11 is located on the p arm of the chromosome #8 in humans. Molecular analysis has shown that Charlie Chaplin is a heterozygote for the STR marker (genotype DS11A and DS11B) Using this knowledge, provide a diagram of meiosis showing only the movements of chromosome 8 (assume no nondisjunction). Throughout, indicate where the marker may be found (in other words, label the chromosome to show where the STR markers can be found. please only show the chromosomes at interphase, metaphase 1, end of meiosis 1, metaphase 2, and end of meiosis 2.All of the above 8. Which is the correct description of the human chromosome number? * O2n =23 (where n=23, the number of different numbered human chromosomes) O2n = 46 (where n=23, the number of different numbered human chromosomes) O 4n = 23 (where n=23, the number of different numbered human chromosomes) O4n = 46 (where n=23, the number of different numbered human chromosomes) Any comments please use this space (e.g. to clarify an answer or point out w issues on questions, etc.)Pod Shape Cross 4. Refer to the diagram to the right to answer the following question. What is the genotype of the F1 generation? P1 A. PP Inflated constricted В. Рр С. pp 111 D. P all inflated 3 inflated; 1 constricted 5. The typical human body cell contains 46 chromosomes. How many chromosomes are found in a typical human e Education TM, Inc.