I believe it is D bcuz there is no more reproducing of that species so it will eventually die out.
Answer:
Option B
Explanation:
The series of events mentioned in this description are as follows -
a) In 1850, ash layer deposits over the layer of red clay
b) In 1902, layer of silt from tsunami covers the ash
Now pot is found in between ash and red clay layer
While coin is found in between ash and silt.
Thus, it is clear that pot was first buried between the ash and red clay layer. While coin was buried in 1902 above the ash layer but beneath the silt layer.
Hence, option B is correct
Answer:
b
Explanation:
There were three models for how organisms might replicate their DNA: semi-conservative, conservative, and dispersive.
The semi-conservative model, in which each strand of DNA serves as a template to make a new, complementary strand, seemed most likely based on DNA's structure.
The models were tested by Meselson and Stahl, who labeled the DNA of bacteria across generations using isotopes of nitrogen.
From the patterns of DNA labeling they saw, Meselson and Stahl confirmed that DNA is replicated semi-conservatively.
Mode of DNA replication
Imagine yourself in 1953, after the double helix structure of DNA has just been discovered^1
1
start superscript, 1, end superscript. What burning questions might be on your mind, and on the minds of other scientists?
One big question concerned DNA replication. The structure of the DNA double helix provided a tantalizing hint about how copying might take place^{1,2}
1,2
Answer:
The correct answer will be option- synaptonemal complex.
Explanation:
The tetrad arrangement of the genetic material in an organism is mediated by a highly conserved structure known as the synaptonemal complex. The synaptonemal complex is formed during the prophase I of the meiosis I which attaches the chromatin of the homologous chromosomes.
The synaptonemal complex is a proteinaceous structure which is formed by the two lateral ladders like elements with a central portion composed of the central element. The chromatin gets attached to the lateral elements while the central a portion bridge space between the two ladders thus help in the formation of the tetrad.
Thus, option- synaptonemal complex is the correct answer.
I think the answer is iguana.
