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pochemuha
3 years ago
7

Question: Will weather changes (drought/flooding) over

Biology
1 answer:
Ronch [10]3 years ago
3 0

Answer:

Changes in the environment affect the food sources available for birds. For example, if a flood was to occur, there would be an abundance of fish to birds to eat. So birds with bigger beaks will be able to eat fish, to live and reproduce offspring with bigger beaks. While birds with smaller beaks will not be able to catch fish to eat, therefore decreasing the population of birds with smaller beaks.

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Micropipettes and gene guns are mechanical vectors that introduce recombinant DNA directly into the cell’s
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... into the cell's "nucleus".
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3 years ago
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Two women are comparable in age, body conformation, and are pregnant at the same time, but one experiences stretch marks, while
adell [148]

The question is incomplete as it does not have the options which are:

a. The woman with stretch marks has a greater collagen-to-elastic fiber ratio.

b. The woman may have different gender babies.

c. The woman with less stretch marks has larger skin cells.

d. The woman without stretch marks has more cholesterol in her diet, which affects her cell membranes.

Answer:

The woman with stretch marks has a greater collagen-to-elastic fiber ratio.

Explanation:

The stretch marks on the hips, stomach and breast of pregnant women is a very common problem. These stretch marks appear pinkish in color which is very difficult to treat.

These stretch marks are the result of the collagen to elastin ratio which increases and stretches. This stretching happens due to the sudden or rapid increase in the weight of the body or the affected portion.

Thus, the selected option is correct.

4 0
3 years ago
How many ways can you choose ten tadpoles from a pool of 20?
mestny [16]
What do you mean but if you mean what I think you mean then you take half of the tadpoles 
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3 years ago
huntington disease is a dominant disease caused by expansion of the trinucleotide repeat region of the htt gene that results in
Travka [436]

By haphazardly introducing a transgene harboring a disease-causing mutant variant of the HTT gene into the genome of a mouse or primate, it is possible to produce an animal model with the majority of the symptoms of this condition. Here option B is the correct answer.

Huntington's disease is an uncommon, genetic condition that results in the gradual degeneration of brain nerve cells. Huntington's illness, which frequently results in mobility, cognitive, and psychological problems, has a substantial impact on a person's functional capacities.

A DNA region known as a CAG trinucleotide repeat is involved in the HTT mutation that causes Huntington's disease. Three DNA-building building pieces that are repeated several times in a row make up this region.

Complete question:

Huntington's disease is a dominant disease caused by the expansion of the trinucleotide repeat region of the Htt gene that results in the production of a Huntingtin protein with an expanded number of glutamines. An animal model with most features of this syndrome could be created by

A - knocking in a wild-type copy of the Htt gene to a mouse or primate genome.

B - randomly inserting a transgene containing a wild-type allele of the Htt gene to a mouse or primate genome.

C - randomly inserting a transgene containing a disease-causing mutant allele of the Htt gene into a mouse or primate genome

D - knocking out one copy of the wild-type Htt gene from a mouse or primate genome.

E - knocking out both copies of the wild-type Htt gene from a mouse or primate genome.

To learn more about Huntington's disease

brainly.com/question/12572808

#SPJ4

3 0
1 year ago
HEY BRAINY USERS I NEED YOUR HELP MY WORK IS DUE TODAY AND I STRESSING SO MUCH PLZ HELP!!!
enot [183]

Answer:

1. ocular lens,2. eyepiece,3. arm,4.focus knob,5.objective lens,6,stage,7,light source,8 coarse knob

Explanation:

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