The answer would be rift valleys
Answer:
K = Epicotyl
L = Radicle
M = Cotyledon
N = Micropyle
Hope this helps.
Stay safe and Merry Christmas! :)
Answer: Because apples mature more quickly than hawthorn fruit.
Explanation:
Sympatric speciation can be defined as the formation(evolution) of new species from the previously surviving ancestral species while both continue to inhabit at the same place. This is because the one of the two organism there got better resources than other.
Here, the reason the maggot fly has been contributed to the incipient speciation because apple matures more quickly as compared to that of the hawthorn fruit.
The flies feeding on apple have been selected for the rapid development.
Hello!
The parts of the central nervous system (CNS) include only the following:
Most of the other parts we associate with the nervous system are part of the PNS, or the peripheral nervous system.
I hope I helped!
Answer:
The answer is reciprocal chromosomal translocation
Explanation:
The Philadelphia chromosome (Ph) is the truncated chromosome 22 generated by the reciprocal translocation t(9;22)(q34;q11) and was first identified in 1960 in a patient with CML [3]. Translocation of the proto-oncogene tyrosine-protein kinase (ABL1) gene located on chromosome 9 to the breakpoint cluster region (BCR) gene located on chromosome 22 results in a BCR-ABL1 fusion gene on the Ph [4, 5]. Three BCR-ABL1 fusion gene hybrids encode BCR-ABL1 protein isoforms p210, p190, and p230, which have persistently enhanced tyrosine kinase (TK) activity. These aberrantly activated kinases disturb downstream signaling pathways, causing enhanced proliferation, differentiation arrest, and resistance to cell death [6, 7]. Tyrosine kinase inhibitors (TKIs) targeting the BCR-ABL1 protein are the most successful targeted therapy for Ph-positive leukemia.
