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2 years ago

For the people that can't see the picture

Biology

1 answer:

vichka [17]2 years ago

4 0

Answer:

Answer would be A

Explanation:

If you cannot read it A is

warm, moist air rises

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3 facts about Photosynthesis ?

anzhelika [568]

Answer:

3 FACTS ABOUT PHOTOSYNTHESIS:

The chemical equation for photosynthesis is: carbon dioxide + water --> glucose + oxygen
Photosynthesis the process by which green plants and some other organisms use sunlight to synthesize (get or create) nutrients from carbon dioxide and water.
Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Hope this helps!

5 0

1 year ago

Explain Mendel's law of independent assortment and how the 9:3:3:1 phenotypic ratio among the F2 of a dihybrid cross provides ev

GrogVix [38]

Answer:

Explanation:

Mendel's law of independent assortment state that two different genes assort independently in gamete formation.

To reach this conclusion, one has to do a dihybrid cross. This means that two genes responsible for different traits need to be analyzed at the same time.

1) Starting with a parental generation of a cross between two pure lines (homozygous for both genes) with different traits, a plant with yellow and round seeds (YYRR) and another with green and wrinkled seeds (yyrr). The F1 will be phenotypically homogeneous (yellow and round), and genotypically heterozygous (YyRr).

2) If the individuals from the F1 are crossed with one another, we have to do a Punnett Square to determine the phenotypic ratio of the F2.

If the genes assort independently, the F1 individuals will produce their different gametes with the same probability. Each possible gamete will appear in a 1/4 proportion: YR, Yr, yR, yr.
The 9:3:3:1 ratio is a result of analyzing the possible phenotypes that result from the dihybrid cross.

See the attached image for an illustration of the crosses in each generation and the Punnett Square.

4 0

3 years ago

a region of dna that contains instructions for the amino acid sequence of a particular protein is called a(n) ____.

Kisachek [45]

These instructions that produces a specific protein is called the Gene. A gene is a region of DNA that encrypts purpose. A chromosome comprises of a long strand of DNA that involves many genes. A human chromosome can contain up to 500 million base pairs of DNA that has thousands of genes.

8 0

3 years ago

Which of the following organelles is responsible for providing a barrier between the cell and its surroundings?

Archy [21]

It is C. Because the other 3 are in side of the the cell membrane to be protected.

7 0

3 years ago

Why is it necessary for meiosis to produce cells with fewer chromosomes>

ruslelena [56]

Answer:

A. It saves energy for the organism to produce fewer chromosomes.

B. Asexual reproduction requires fewer chromosomes than sexual

reproduction

C. If it did not, the chromosome number would double in each

generation

D. Organisms reproduce sexually by joining two tetrads together.

6 0

2 years ago