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REY [17]
3 years ago
15

What is the probability that each of the following pairs of parents will produce the indicated offspring? (Assume independent as

sortment of all gene pairs.)
(a) AABBCC × aabbcc->AaBbCc
(b) AABbCc × AaBbCc->AAbbCC
(c) AaBbCc × AaBbCc->AaBbCc
(d) aaBbCC × AABbcc->AaBbCc
Biology
1 answer:
ASHA 777 [7]3 years ago
5 0

Answer:

(a) AABBCC × aabbcc->AaBbCc     → 1

(b) AABbCc × AaBbCc->AAbbCC   → 1/32

(c) AaBbCc × AaBbCc->AaBbCc     → 1/8

(d) aaBbCC × AABbcc->AaBbCc    → 1/2

Explanation:

In such cases we calculate the probability of each allelic pair separately.

(a) AABBCC × aabbcc -> AaBbCc  

Aa  Aa   Aa  Aa           Bb  Bb  Bb  Bb         Cc  Cc  Cc  Cc

↓                                   ↓                                ↓  

4/4 = 1                          4/4 = 1                       4/4 = 1    

In case of gene A, out of the 4 probable allelic combinations, 4 will be Aa so the probability is 4/4 = 1.

In case of gene B, out of the 4 probable allelic combinations, 4 will be Bb so the probability is 4/4 = 1.

In case of gene C, out of the 4 probable allelic combinations, 4 will be Cc so the probability is 4/4 = 1.

So, the total probability of getting AaBbCc   = 1 x 1 x 1 = 1.                

(b) AABbCc × AaBbCc -> AA bb CC

AA  AA   Aa  Aa           BB  Bb  Bb  bb         CC  Cc  Cc  cc

↓                                                        ↓           ↓  

2/4                                                    1/4          1/4

In case of gene A, out of the 4 probable allelic combinations, 2 will be AA so the probability is 2/4.

In case of gene B, out of the 4 probable allelic combinations, 1 will be bb so the probability is 1/4.

In case of gene C, out of the 4 probable allelic combinations, 1 will be CC so the probability is 1/4.

So, the total probability of getting AA bb CC = 2/4 x 1/4 x 1/4 = 1/32.

(c) AaBbCc × AaBbCc -> AaBbCc

AA  Aa   Aa  aa           BB  Bb  Bb  bb         CC  Cc  Cc  cc

        ↓                                  ↓                               ↓  

       2/4                               2/4                           2/4

In case of gene A, out of the 4 probable allelic combinations, 2 will be Aa so the probability is 2/4.

In case of gene B, out of the 4 probable allelic combinations, 2 will be Bb so the probability is 2/4.

In case of gene C, out of the 4 probable allelic combinations, 2 will be Cc so the probability is 2/4.

So, the total probability of getting AaBbCc = 2/4 x 2/4 x 2/4 = 1/8.

(d) aaBbCC × AABbcc->AaBbCc

Aa  Aa   Aa  Aa               BB  Bb  Bb  bb          Cc  Cc  Cc  Cc

      ↓                                        ↓                                ↓  

4/4 = 1                                       2/4                          4/4 = 1    

In case of gene A, out of the 4 probable allelic combinations, 4 will be Aa so the probability is 4/4 = 1.

In case of gene B, out of the 4 probable allelic combinations, 2 will be Bb so the probability is 2/4.

In case of gene C, out of the 4 probable allelic combinations, 4 will be Cc so the probability is 4/4 = 1.

So, the total probability of getting AaBbCc = 1 x 2/4 x 1 = 1/2.

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Answer:

Anorexia : Condition which occurs due to very low weight of body due to the fear of gaining weight.

Bulimia: Bulimia nervosa can be described as a condition in which there is binge eating by the person first which is followed up by purging.

Bigorexia: Bigorexia can easily be described as the reverse of anorexia.

Drunkorexia: A condition in which there is binge or purge eating due to the intake of alcohol.

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Binge eating: It is a condition in which a person does excessive over eating without feeling the need to stop.

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Bulimia: Bulimia, also termed as Bulimia Nervosa, is a condition in which a person does over eating i.e binge of an eating first and then tries to compensate it with any kind of purging activity. The purging activity could be any activity which he tries to do so that he can get rid of the excessive food taken.

Bigorexia: Bigorexia, also termed as Muscle Dysmorphia, is a condition in which the person thinks that he/she is very skinny or under weight when in real he/she is normal or usually over weight.

Drunkorexia : Drunkorexia is a condition in which a person has abnormal eating patterns trying to compensate for the large amount of alcohol that he/she has consumed.

Exercise compulsion : Exercise compulsion is a disorder in which a person focuses only on exercising ignoring the daily activities or any injuries that he/she might have acquired.

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