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Korvikt [17]
3 years ago
14

From the ninth week through birth, a developing baby is in the _____ period of prenatal development.

Biology
1 answer:
IceJOKER [234]3 years ago
5 0

the baby is in the 2nd trimester...

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Why can't patterns of inheritance in humans be as easily as in peas or fruit flies?
Aleks [24]

Answer:

Humans produce few offspring slowly.

Explanation:

One of the reasons that patterns of inheritance in humans cannot be studied as easily as in peas or fruit flies is our generation time is approximately 20 years. Is it is about three months in peas and it is about 30 days in fruit flies. All the genes in fruit flies have been mapped. Not all of the genes in humans have been mapped.

7 0
3 years ago
Please HELP I will give 85 points and Brainliest. Develop a logical argument about whether to use CRISPR/Cas9 to edit the human
Simora [160]

Answer:

CRISPR-Cas9 is a DNA modification technique derived from a bacterial defense mechanism.

This breakthrough innovation allows the deletion and insertion of genes in a simple, fast and efficient way, much like "DNA scissors".

The CRISPR-Cas9 method is increasingly used in laboratories because it has several advantages over the DNA cutting enzymes developed before it.

First advantage, it is much easier to use (compared to other gene-editing tools). It has already allowed several teams of researchers to target several genes at once, including in human cells.

Other major advantages resulting from the simplicity of the system: its speed and its low cost. The CRISPR-Cas9 method takes only a few days (instead of a few months) and is at least ten times less expensive than those used before.

CRISPR-Cas9 is therefore a tool of disconcerting ease to modify the genome of many types of cells (to produce a protein for example), in bacteria, plants, animals and perhaps one day in humans.

6 0
3 years ago
Why are the reaction centers of photosystems composed of several structurally different pigments?
Ostrovityanka [42]

Answer:

Explanation:

Photosystems are structural and functional

units of protein complexes that are involved in photosynthesis and carry out the absorption of light and transfer of electrons and energy. The reaction centers of photosystems are made up of structurally different pigments which enables plants absorb light energy at different wavelengths.

5 0
3 years ago
When Pedro spent a year in the United States as an exchange student, he found that at first he seemed to make a lot
Vinvika [58]

Answer:

The correct answer is - option A. A difference in the cultural display rules.

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Social or cultural displays rules are a social cluster or group and informal cultural norms to express their emotions in the correct way which are specific to cultural or social groups.

Pedro is an exchange student which makes his social norms different than the social norms or cultural display rules which cause difficulties to deal with the people and classmates.

7 0
3 years ago
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Most tropical storms which could become hurricanes form over the ocean near the equator. Which statement helps to explain the fo
NikAS [45]
<span>Warm air is able to hold more moisture than cool air.</span>
5 0
4 years ago
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