Tagged Questions

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1answer
13 views

How does x-inactivation affect the expression of traits that a female carries?

Consider a female who is a carrier of a disease. Does she express the traits of this disease at all? I'm confused by x-inactivation - couldn't it mean that ~50% of a carried trait …
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2answers
40 views

How did the examiners reach this conclusion

First of all, how did they even come to the conclusion that yellow was dominant? Also, in the parental cross what is 'x'? Why us the parental cross genotypes showing anything oth …
2
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1answer
14 views

Translocation of homologous vs non-homologous chromosomes

How does the translocation of non homologous chromosomes indicate that there may be a genetic defect whereas homologous chromosome translocations are normal in everyone!
2
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1answer
32 views

What are the implications of two genes existing on the same chromosome as apposed to on seperate chromosomes?

What are the implications of two genes existing on the same chromosome as apposed to on seperate chromosomes?
2
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0answers
12 views

What is the relationship between the complexity of the genome and genetic variety?

Does the size of the genome (approximate number of millions of base pairs) or the number of genes (approximately) have a direct relationship to the genetic variety of two compared …
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1answer
37 views
2
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2answers
16 views

Where is DNA found in a prokaryote except for in the plasmid?

Where is DNA found in a prokaryote except for in the plasmid?
1
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1answer
12 views

Is the inability to mate sufficient evidence to call two groups different species?

The question: Shrimps from one location are phenotypically similar. When scientists tried to mate them, they instead snapped angrily at each other. Why is the inability to mate …
1
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1answer
9 views

Does the term cloning only mean producing copies of organism that are genetically identical ARTIFICIALLY, or is just the afore mentioned definition but in all circumstances?

Does the term cloning only mean producing copies of organism that are genetically identical ARTIFICIALLY, or is just the afore mentioned definition but in all circumstances?
-1
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0answers
16 views

What can be expected in the offspring from this test cross?

The answer is: spotted is recessive to clear. Why?
1
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1answer
21 views

VCAA 2005 Genetics question needing clarification and understanding

How do I do these questions? Please explain fully, with all detail of you thoughts. Also, how do we answer the question of "what genotype and phenotype ratios would you expect …
1
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1answer
16 views

When do the following key events in mitosis/meiosis occur?

When do each of translation, crossing over, deletion and inversion happen and in meiosis/mitosis?
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1answer
12 views

Would Sympatric Speciation in humans result in a diploid number of 46x2=92?

Would Sympatric Speciation in humans result in a diploid number of 46x2=92?
1
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1answer
11 views

Why is translocation caused down syndrome considered having a ‘trisomy’?

Why is translocation caused down syndrome considered having a 'trisomy' since the translocated chromosone 14 is just a Robertsonian translation isn't it? It's no more a 'trisomy' t …
1
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1answer
10 views

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