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Phantasy [73]
2 years ago
13

Water found in an river is... A - Salt Water B - Fresh Water

Biology
1 answer:
lubasha [3.4K]2 years ago
7 0

Answer:

B fresh water. salt water is a mixture found in oceans. hope this helps!

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This tutorial will take you step by step through the question. Individuals with the genotypes Aa Bb CC Dd and Aa bb Cc Dd are cr
Mrac [35]

Answer:

The correct answer is -

a) 1/16

b) 1/64

c) 1/32

Explanation:

According to the law of independent assortment, each allele of a particular gene has equal chances of getting inherited into the gametes.

In a Mendelian cross of Aa x Aa would give;

AA = 1/4,

Aa = 2/4 and

aa = 1/4

The result of the cross between AaBb x AaBb would be 1/16 due to the fact that probability is still the same AA = 1/4, BB = 1/4 therefore, AABB = 1/16 = 1/4× 1/4.

Now based on this crossing the following:

AaBbCCDd x AabbCcDd.

Take each allele as individual

Aa x Aa would give; AA = 1/4, Aa = 2/4 and aa = 1/4

Bb x bb would give; BB = 1/2, bb = 1/2

CC x Cc would give; CC = 1/2, Cc = 1/2

Dd x Dd would give; DD = 1/4, Dd = 2/4 and dd = 1/4

Then the probability of progeny of the following would be:

a) the probability of AaBbCcDd = 2/4 x 1/2 x 1/2 x 2/4 = 1/16

b) the probability of aabbCCdd = 1/4 x 1/2 x 1/2 x 1/4 = 1/64

c) the probability of AabbCcDD = 2/4 x 1/2 x 1/2 x 1/4 = 1/32

6 0
3 years ago
How can some single-celled organisms survive even though they are really simple
bija089 [108]
They can survive through homeostasis, the balancing of the internal temperature of the cell. <span />
7 0
3 years ago
When using the scientific method, what is the last thing a scientist must do before the conclusions can be considered trustworth
Sauron [17]
C. Repeat the experiment
3 0
3 years ago
The genes that masks the effects of other genes
kicyunya [14]

epistatic gene

Explanation:

Some genes mask the expression of other genes just as a fully dominant allele masks the expression of its recessive counterpart. A gene that masks the phenotypic effect of another gene is called an epistatic gene; the gene it subordinates is the hypostatic gene.

7 0
3 years ago
Choose all of the ways that cellular respiration is different from photosynthesis. Select the 4 correct answers. *
shepuryov [24]

Answer:

It uses glucose as a reactant.

It uses oxygen as a reactant.

It makes ATP.

It happens in the mitochondria.

Explanation:

It occurs in cells.  - this is false. Both cellular respiration and photosynthesis occur in cells.

It uses glucose as a reactant.  - this is true. Cellular respiration uses glucose as a reactant, it is broken down to release energy. Photosynthesis produces glucose.

It uses oxygen as a reactant.  - this is true. Cellular respiration uses oxygen as a reactant. In contrast, photosynthesis releases oxygen as a byproduct

It makes ATP. - this is true. Cellular respiration makes ATP. Photosynthesis uses energy to produce the sugar which is used in cellular respiration to synthesise ATP.

It happens in the chloroplasts.  - this is false. Photosynthesis occurs in the chloroplasts, not cellular respiration

It happens in the mitochondria.  - this is true. Respiration occurs in the mitochondria, whereas photosynthesis occurs in the chloroplasts.

It involves oxygen, glucose, carbon dioxide, and water. - this is false, Both photosynthesis and cellular respiration involve oxygen, glucose, carbon dioxide, and water. Photosynthesis produces oxygen and glucose using carbon dioxide and water. Respiration produces glucose and carbon dioxide using water and carbon dioxide.

6 0
3 years ago
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