1) what is the proportion of genes typically observed being expressed at a different level between...
1) what is the proportion of genes typically observed being expressed at a different level between species?
2) Expression of which genes evolve faster: male-specific, female-specific, or sex-shared? Male-specific genes evolve faster
Homework Answers
1. The gene expression differ at a various level between the species. The gene expression differ at transcription level, RNA processing level and translation level. Their is approximate figure that these process have gene regulation that differ at a proportion of 5 percent to 1 percent.
2. Male have XY chromosomes where as female have XX chromosomes. The male specific genes evolved faster as compared to the females because they have one Y chromosomes that have genes that evolved fast as high rate of mutation in male germline.
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1) what is the proportion of genes typically observed being
expressed at a different level between...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms....
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has S and T sex chromosomes where males are ST and females are SS. Gene expression of the single chromosome in males is doubled and females do not inactivate either Schromosome. A species that only...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms....
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has X and Y sex chromosomes where males are XY and females are XX. Gene expression of the SRY gene is doubled in males, and both of the X chromosomes is expressed in females. A...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We will use this cross to determine the ratios of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following symbols to write out the cross: Male: 3 Female: 9 Dark body color (ebony) = e Wild-type body color: E or E+ Rudimentary wings- (vestigial wings= v) Wild-type wings: V or V+ 3.2) What would the cross look like if...
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Biological sex is determined by a complex suite of genes, including the SRY gene and the...
Biological sex is determined by a complex suite of genes, including the SRY gene and the AR gene. These genes impact hormone production, internal and external reproductive anatomy, and sex characteristics. It's important to note that biological sex is different from gender- gender is based on social and cultural ideas of what it means to be a woman or a man. For this project we are focusing only on biological sex. In the HHM Biolnteractive, Sex Verification of Athletes, click...
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Which of the following are true of modifying and epistatic genes in regard to genetic diseases? (1) Modifying genes can account for the severity of a genetic disease Modifying genes do not completely mask genes for a genetic disease. Epistatic genes may cause a disease by masking normal genes. The expression of modifying genes can be affected by environmental factors. Select the true statements about sex influenced and sex limited traits: (circle all that apply) (2) Sex-influenced traits and sex-limited traits...
9. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the...
9. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the mitochondrial genome, etc. Different elements are inherited in different ways, so different offspring inherit different elements from different parents. For each case, answer "both parents', 'mother', 'father, or 'neither parents. For instance, sons inherit autosomal genes from both parents, but sons inherit W chromosome genes from neither parent (because males are ZZ, and don't have a W chromosome...) (1 point per answer) Sons inherit...
6. What is the distance between the w and y genes? a. .16 mu5.1% b. .92...
6. What is the distance between the w and y genes? a. .16 mu5.1% b. .92 mu c..983 mu d. 5.08 mu TOLL For Questions 3-6 A cross between a female fly which is wy/wty+ and a wy/Y male. The male offspring an wy/Y - 3000 wty/Y - 2900 wty/Y - 50 wy/Y - 50
PART B. TWO-GENE CROSSES. Review the phenotype ratios for crosses between two unlinked genes (with traditional...
PART B. TWO-GENE CROSSES. Review the phenotype ratios for crosses between two unlinked genes (with traditional Mendelian ratios). The results for crosses involving two gene mutations are provided. There are three listed. You should choose 2 two-gene crosses to investigate. Determine if these mutations have any lethality, linkage, or epistatic relationship. Hint: A good first step is to look at the inheritance patterns of each individual gene. Typical Steps for Two-Gene Analysis. Various crosses have been performed and the results...
4. You are working on a certain species of worm, with an ZZZW sex determination system....
4. You are working on a certain species of worm, with an ZZZW sex determination system. You perform karyotype analysis for a mating pair, but you don't know which one is the male and which one is the female. Which one would you guess is the female (left or right?) (2points) ) 5. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the mitochondrial genome, etc. Different elements are transmitted in different ways, so different...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has S and T sex chromosomes where males are ST and females are SS. Gene expression of the single chromosome in males is doubled and females do not inactivate either Schromosome. A species that only...
Scientists discover many new species with different mechanisms for dosage compensation between "male" and "female" organisms. Which of the following cases would result in correct sex chromosome dosage between males and females within the species? Choose ALL correct answers 4 points possible A species that has X and Y sex chromosomes where males are XY and females are XX. Gene expression of the SRY gene is doubled in males, and both of the X chromosomes is expressed in females. A...
3) Dihybrid cross: The dark-bodied and rudimentary winged genes are on two different autosomal chromosomes. We will use this cross to determine the ratios of phenotypes in the F2 generation when there are two genes involved. 3.1) Use the following symbols to write out the cross: Male: 3 Female: 9 Dark body color (ebony) = e Wild-type body color: E or E+ Rudimentary wings- (vestigial wings= v) Wild-type wings: V or V+ 3.2) What would the cross look like if...
Biological sex is determined by a complex suite of genes, including the SRY gene and the AR gene. These genes impact hormone production, internal and external reproductive anatomy, and sex characteristics. It's important to note that biological sex is different from gender- gender is based on social and cultural ideas of what it means to be a woman or a man. For this project we are focusing only on biological sex. In the HHM Biolnteractive, Sex Verification of Athletes, click...
9. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the mitochondrial genome, etc. Different elements are inherited in different ways, so different offspring inherit different elements from different parents. For each case, answer "both parents', 'mother', 'father, or 'neither parents. For instance, sons inherit autosomal genes from both parents, but sons inherit W chromosome genes from neither parent (because males are ZZ, and don't have a W chromosome...) (1 point per answer) Sons inherit...
6. What is the distance between the w and y genes? a. .16 mu5.1% b. .92 mu c..983 mu d. 5.08 mu TOLL For Questions 3-6 A cross between a female fly which is wy/wty+ and a wy/Y male. The male offspring an wy/Y - 3000 wty/Y - 2900 wty/Y - 50 wy/Y - 50
PART B. TWO-GENE CROSSES. Review the phenotype ratios for crosses between two unlinked genes (with traditional Mendelian ratios). The results for crosses involving two gene mutations are provided. There are three listed. You should choose 2 two-gene crosses to investigate. Determine if these mutations have any lethality, linkage, or epistatic relationship. Hint: A good first step is to look at the inheritance patterns of each individual gene. Typical Steps for Two-Gene Analysis. Various crosses have been performed and the results...
4. You are working on a certain species of worm, with an ZZZW sex determination system. You perform karyotype analysis for a mating pair, but you don't know which one is the male and which one is the female. Which one would you guess is the female (left or right?) (2points) ) 5. Different genes are located on different kinds of genetic elements - autosomes, W chromosomes, the mitochondrial genome, etc. Different elements are transmitted in different ways, so different...
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