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Allisa [31]
3 years ago
11

Which statement identifies an example of a genetic factor that could influence the growth or development of an organism created

by an environmental factor? the lack of available sunlight for a small sapling to grow an increased amount of rain causing flooding in a local river fertilizer creating a mutation among a farmer's crops overcrowding of a local deer population resulting in fewer resources available
Biology
1 answer:
qaws [65]3 years ago
8 0

Answer:

fertilizer creating a mutation among a farmer's crops

Explanation:

A genetic factor is one that affects the gene or genome of an individual organism. This genetic factor often influences the observable trait called PHENOTYPE of the organism. In this case, an example of a genetic factor that could influence the growth or development of an organism created by an environmental factor is the "fertilizer creating a mutation among a farmer's crops"

The fertilizer represents the environmental/chemical factor which is creating the genetic factor (mutation) that will eventually influence the growth or development of the crops.

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Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the
erastova [34]

Complete question:

Imagine that a newly discovered, recessively inherited disease is expressed only in individuals with type O blood, although the disease and blood group are independently inherited.

A normal man with type A blood and a normal woman with type B blood have already had one child with the disease. The woman is now pregnant for a second time.

Assuming that both parents are heterozygous for the gene that causes the disease, what is the probability that the second child will also have the disease? Express your answer as a fraction using the slash symbol and no spaces (for example, 1/2).

Answer:

The probability that the second child will also have the disease is 1/16.

Explanation:

<u>Available data:</u>

  • Two genes independently inherited: one for blood type, the other for disease
  • Man with type A blood  x  Woman with type B blood
  • Both parents are heterozygous for the gene that causes the disease; Dd

If the man has A blood, and the woman has B blood, and they already have an affected child, this means that they must be heterozygous for blood type too.

Cross:  

Parentals)           AiDd         x      BiDd

Gametes)  AD  Ad  iD  id       BD  Bd  iD  id

Punnett square)      AD       Ad       iD       id

                     BD   ABDD  ABDd  BiDD BiDd

                     Bd   ABDd   ABdd   BiDd Bidd

                     iD    AiDD    AiDd    iiDD   iiDd

                     id    AiDd     Aidd     iiDd    iidd

F1) <u>Genotype</u>:

1/16 ABDD

2/16 ABDd

1/16 ABdd

1/16 AiDD

1/16 BiDD

2/16 AiDd

2/16 BiDd

1/16 Aidd

1/16 Bidd

1/16 iiDD

2/16 iiDd

1/16 iidd

<u>Phenotype:</u>

3/16 A/B normal

4/16 A normal

4/16 B normal

3/16 0 normal

1/16 0 affected by the disease.

3 0
3 years ago
hey all of you science talents I am in desperate needs of your help. Please don't answer randomly. Try your best and DONT ANSWER
Alex

Answer:

1. 25%

2. 75%

3. 1:2:1

Explanation:

6 0
2 years ago
Pleasehelp me with this study island question!!
galina1969 [7]

Answer:

the third choice

Explanation:

7 0
3 years ago
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Flagella may best be described as:
vlada-n [284]

Answer:

The correct answer is number one: <em>Filamentous rotating structures that provide motility may be singular, paired or scattered.</em>

Explanation:

Flagella are organelles defined by function rather than structure.

The primary function is that of locomotion but also being sensitive to chemicals and temperatures outside the cell.

Helicobacter pylori is a good example of flagella: It uses multiple flagella to propel itself through the mucus lining to reach the stomach epithelium.

Sperm cell is a good example, which uses its flagellum to propel itself through the reproductive tract of females.

I hope it helps!

6 0
3 years ago
Read 2 more answers
In what 2 simple ways can we restore the land?
My name is Ann [436]

Answer:

Land restoration can include the process of cleaning up and rehabilitating a site that has sustained environmental degradation, such as those by natural cause (desertification) and those caused by human activity (strip mining), to restore that area back to its natural state as a wildlife home and balanced habitat.

Explanation:

  • setting up reliable water provisioning (e.g. by digging wells or placing long-distance water pipes)
  • stabilizing and fixating the soil
7 0
2 years ago
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