Gregor Mendel preformed his experiments by cross-pollinating various types of pea plants. True or False

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

ASHA 777 [7]

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.

5 0

3 years ago

7. The liver pours extra __________into the body for energy?

iren [92.7K]

<span>7. Extra sugar into the blood to provide enough food source. It can also trigger the hormone adrenaline which gives energy. 8. Bone marrow increases the white blood cell count which overall increases the chance of countering infections 9. The parasympathetic nervous system is responsible for keeping the body at a relaxed state . I.e. it would reduce the heart rate if it is too high. The parasympathetic nervous system is affected by a stresser causing it to become inactive until the stressor has gone 10. increased blood pressure can develop into chronic stress. 11.If you have chronic stress lasting more than a month there is a high probability you will catch an infection. 12. Our sympathetic nervous system controls stress by changing our body state i.e. higher heart rate. 13. Renin is an enzyme that is secreted into the body by the liver which is used to restore liver stress levels. 14. Glucocorticoids is a series of hormones/drugs that are used to treat any inflammatory conditions especially in the brain, liver and kidney 15. The immune system is made up of more than a trillion white blood cells all coded to help deal with different types of pathogens. 16. Its a type of hormone produced by the thymus gland which is heavily used in the immune response to fight off infections. 17.a large cell that is found in the damaged tissue which helps fight off infection 18. It is a type of lymphocyte responsible for the production of antibodies. it can be found all over the body 19. *cannot be answered*</span>

7 0

3 years ago

Which statement about an ecosystem is incorrect?

kumpel [21]

There is a community of organisms but no no living components

6 0

3 years ago

Which best describes the role of a primary consumer in a food web?

11111nata11111 [884]

Answer: Herbivore that feeds on producers

3 0

3 years ago

Can someone give me an example of a haiku of biotic interactions?

sergij07 [2.7K]

Answer:

Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms. Introduction In ecology and biology, abiotic components are non-living chemical and physical factors in the environment which affect ecosystems

5 0

3 years ago

Gregor Mendel preformed his experiments by cross-pollinating various types of pea plants. True or False​

Gregor Mendel preformed his experiments by cross-pollinating various types of pea plants. True or False