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Mariana [72]
1 year ago
5

What did the discovery of radioactivity do to change the geological time scale?

Biology
2 answers:
Gemiola [76]1 year ago
5 0

yes Answer:

Explanation:

bc yes

lesya692 [45]1 year ago
5 0
The discovery of radioactivity in the late 1800s changed that. Scientists could determine the exact age of some rocks in years. They assigned dates to the time scale divisions. For example, the Jurassic began about 200 million years ago.
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An experiment was performed to determine the mode of inheritance of two mouse genes, one for fur color and one for fur length. I
sammy [17]

Full question found from other source

The F2 generation phenotypes for each cross are shown in Table 1. (See attachment) Which of the following is the mean number per cross of F2 generation offspring that are the result of crossing over?

Answer:

B, 2.2

Explanation:

The parental genotypes are long and black vs short and white. Therefore the phenotypes that result from crossing over are long and white, and short and black. (middle two rows of the table).  If we add up the total number of offspring with these genotypes we get 6 long whites, and 5 short blacks.

The total is 11 from 5 crosses, so the mean is 11/5 = 2.2

7 0
2 years ago
Which of the following genes would not likely be encoded on a plasmid?
raketka [301]

Answer:

gene encoding enzymes for glycolysis.

Explanation:

Plasmid may be defined as an extra chromosomal circular DNA that replicate independently of the main chromosomal material. Plasmid are generally used for the manipulation of genes in molecular technologies.

Plasmid can encode gene for toxins, antibacterial resistance and for the unusual substrate degradation. The plasmid cannot code enzyme for glycolysis because these enzymes are already present in the host organisms. Glycolysis enzymes are independent on the plasmid regulation.

Thus, the correct answer is option (3).

7 0
2 years ago
(d) The researchers claim that the similar regulation of carbohydrate metabolism by hepatocytes when the cells are treated with
lora16 [44]

Answer:

The claim by the researcher is supported because of the known functions of insulin and growth factors. Both hormones have a tendency to respond to the presence of glucose. The growth hormone initiates STAT5 signaling for producing the Igf-1 factor that is important for utilizing glucose. The insulin hormone is well known for utilizing glucose.

8 0
2 years ago
Your science class has taken swabs throughout the school. The image shows the petri dish containing a bacterial culture that dev
tresset_1 [31]

Answer:

answer is D

Explanation:

because that is the correct one

3 0
2 years ago
Read 2 more answers
Which statement accurately describes a similarity between Earth and venus ​
Zanzabum

Both planets have retrograde rotation. hope this helped <3

4 0
2 years ago
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