Answer Posted / pushpa

BACK CROSS IS THE CROSS BETWEEN PROGENY IN F1 GENERARATION
WITH ANY OF ITS PARENTS.
F1 PROGENY* PARENTAL PLANT

TEST CROSS IS THE CROSS BETWEEN PROGENY IN F1 GENERATION
WITH ITS RECESSIVE PARENT.

F1 PROGENY*RECESSIVE PARENT

How the positive and negative DNA markers are used in genetic engineering?

2240

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In cats yellow is due to gene B and black to its allele b. These genes are located on the X chromosome (sex-linked). The heterozygous results in calico (tortoise shell). What kinds of offspring (sex & color) are expected from the cross: black male & calico female? Most calico males are sterile, why?

3040

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Why does RNA have 5 bases and DNA has only 4?

2215

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Suppose you are heterozygous for a mutant beta-thalassemia allele. If the frequency of beta-thalassemia is 1/1600 persons, what is the probabilty that your prospective spouse is heterozygous for a mutant beta-thalassemia allele?

2052

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Are there alternatives to Genetic Engineering?

2426

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Why would farmers, doctors, and manufacturers be interested in Genetic Engineering?

2489

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what is the connection between a chromatid and a replicated DNA molecule?

2233

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A base deletion occurs in the regulator gene of the LAC operon. Describe how the operation of the LAC operon might be affected?

2001

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bakit magkakaiba ng mukha ang tao

2903

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what is DIY Gene testing ?

2105

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Explain steps involved in transcription?

939

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Differentiate between biotechnology and bioengineering?

2420

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what is Avian flu threat? what are its symptoms?

2091

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What is the importance of genetics?

967

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Flower position, stem length, and seed shape were three traits that were studied by Mendel. Each is controlled by an independently assorting gene. If a plant that is heterozygous for all three traits was allowed to self- fertilize, what proportion of the offspring would be expected to show all three dominant phenotypes?

3103

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