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3 years ago

Prime attributes definition

Biology

2 answers:

daser333 [38]3 years ago

7 0

Answer:

Prime attributes are the attributes of the candidate key which defines the uniqueness

kotegsom [21]3 years ago

6 0

Answer: Attributes that form a candidate key of a relation, i.e. attributes of candidate key, are called prime attributes. And rest of the attributes of the relation are non prime. {rollno} is a candidate key and hence rollno is a prime attribute and name, city, phoneno are non prime attributes

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Which of these most likely causes a total solar eclipse?

Pani-rosa [81]

Answer:

D. the new moon at perigee coming between Earth and the sun along a straight line

Explanation:

A new moon at perigee is significantly bigger than a new moon at apogee. Only a new moon at perigee is able to cover the sun's shine completely.

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3 years ago

What happens if the immune system fails to produce proteins called antibodies

Oksi-84 [34.3K]

Answer:

the defenses are down

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3 years ago

In some breeds of mice, yellow coat color is

Elis [28]

In the exposed lethal genes cause the individual's death during embryionic development before being born. H0m0zyg0us dominant individuals do not get born. Yellow: 2/3. Grey: 1/3. Phenotypic ratio: 2:1

<h3>What is complete dominance?</h3>

When the dominant allele completely masks the expression recessive allele, we talk about complete dominance.

This is the case of individuals that are heter0zyg0us for a particular gene and express the dominant trait.

The dominant allele is hiding the expression of the recessive allele.

<h3>What are the lethal genes?</h3>

Refer to genes that impede the normal development of the individual.

They can cause death during embryo development before the individual gets born,

They can cause the individual's death after being born and before reaching sèxual maturity.

Let us assume that mice color is coded by a single diallelic gene that expresses complete dominance.

Available data:

Yellow color is dominant over grey color.

Yellow is coded by the dominant allele Y
Grey is coded by the recessive allele y

Genotype YY → Yellow and lethal

Genotype Yy → Yellow

Genotype yy → Grey

The cross would be as follows,

Cross: Yy x Yy

Gametes) Y y Y y

Punnett square) Y y

Y YY Yy

y Yy yy

F1) Considering ONLY the successfully born individuals

Genotype

2/3 = 50% of the progeny is expected to be heter0zyg0us, Yy.

1/3 = 25% of the progeny is expected to be h0m0zyg0us recessive, yy.

Phenotype

2/3 = 50% of the progeny is expected to be yellow, Yy.

1/3 = 25% of the progeny is expected to be grey, yy.

The phenotypic ratio is 2:1

You will learn more about lethal genes at

brainly.com/question/13654244

brainly.com/question/14932405

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2 years ago

Why can the plant grow new parts but we cannot?

sp2606 [1]

Answer: because, humans can't/don't regenerate in the same way

Explanation:

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3 years ago

All the rabbits living in a particular area would be an example of

Crank

Answer:

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Explanation:

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2 years ago

Prime attributes definition​

Prime attributes definition