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kogti [31]
3 years ago
12

True or false: Agricultural crops can be genetically engineered to become resistant to frost.

Biology
2 answers:
Shalnov [3]3 years ago
8 0
That answer is True
coldgirl [10]3 years ago
5 0

Answer:

true

Explanation:

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In mice, a short-tailed mutant was discovered. When it was crossed to a normal long-tailed mouse, 4 offspring were short-tailed
skad [1K]

Answer:

Dominant

Explanation:

Let the allele for short tail trait be represented by "T" and allele for long tail trait be represented by "t"

When a short tailed  mutant with genotype "tt" is mated with long tailed mouse, following offspring will be produced -

Tt * tt

Tt, Tt, tt, tt

so the ratio of short tailed and long tailed mouse is  1:1

Here it is given as 4:3 . Hence, there are chances that short tail trait is dominant

In the second generation , two short tailed mouse are crossed. The following offspring will be produced

Tt * Tt

TT, Tt, Tt, tt

The ration of short tailed and long tailed mouse is 3:1

Here it is given as 6:3 i.e 2:1  . Hence, short tail trait is dominant over long tail trait.

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3 years ago
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Phosphate is not part of a molecule of dna
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MissTica
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4 years ago
Help plz with science
Serga [27]

22.b 23.c and 24 d

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Imagine you are a pathogen. You are trying to invade a human, and you find yourself moving through barriers. Describe the barrie
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The different barriers that you have to go through are the different organs of the immune system. These are the lymphoid organs, thymus, and bone marrow. The secondary wall that you have to go through are the lymphatic tissues which include the lymph nodes, adenoids, skin, liver, tonsils, spleen, and the lymph vessels. 

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