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3 years ago

What percentage of cancer deaths are related to smoking? 20% 40% 30% 50%?

1 answer:

6 0

That would be 30% of all cancer deaths but accounts for 87% of lung cancer deaths

hope this helps if not just let me know

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In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb

Yuri [45]

Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

F1 : AABB X aabb = AaBb ( all have normal body and normal eye )

F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

A_bb = normal body, eyeless = 3

aabb = ebony body, eyeless = 1

Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

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3 years ago

Atoms of all elements are organized into a nucleus which contains______ surrounded by negatively charged _______.

Lilit [14]

Answer:

DNA, Electrons

Explanation:

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4 years ago

What would happen to the body if it did not produce enzymes that break down acetylcholine?

Morgarella [4.7K]

<span>when the breaking down of acetylcholine is not performed, then symptoms similar to those of poisoning with acetylcholinesterase inhibitors would occur. This would be highly hazardous to the human system as severe poisoning as we all know is very lethal. Even a fetus would not develop with this.</span>

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3 years ago

What is a molecule called when it has more than one element?

Dahasolnce [82]

They are called compounds

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3 years ago

Read 2 more answers

B) Describe your duties as a plant scientist who is involved in creating a new strain of a plant using genetic engineering.

salantis [7]

3 specific tasks you must do while working with Professor Ingo Potrykus on this specific project is plant hybridization, growth recognition and quality of the products obtained.

<h3>How is lineage improvement done?</h3>

The answer is to obtain populations with genetic variability. This can be achieved through hybridization or crossbreeding. Hybridization is the fusion of genetically different gametes, which results in hybrid individuals heterozygous for one or more loci.

With this information, we can conclude that 3 specific tasks you must do while working with Professor Ingo Potrykus on this specific project is plant hybridization, growth recognition and quality of the products obtained.

Learn more about plant hybridization in brainly.com/question/1448528

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2 years ago