Following are the main types of defense employed by prey species against predators Types of defense: Chemical with aposematic coloration

A.Cryptic coloration

B.Batesian mimicry

C.Intimidation display

D.Prey Species: Grasshoppers and seahorses

1.Hoverflies and wasps

2.Bombardier beetles, ladybird beetles, many butterflies

3.Frilled lizard, Porcupine fish

Which one of the following combinations is correct? 

TLS Online TPP Program

#Question id: 12483

#Unit 2. Cellular Organization

ATM and ATR are protein kinases that become activated following specific types of DNA damage. 

A. ATM becomes activated in response to double‐strand breaks, which are detected by the MRN protein complex. 

B. ATR becomes activated by protein‐coated ssDNA that forms when replication forks become stalled or the DNA is being repaired after various types of damage.

C. ATR phosphorylates and activates the checkpoint kinase Chk2, which phosphorylates p53. D. ATM phosphorylates and activates the checkpoint kinase Chk1, which phosphorylates and inactivates the phosphatase Cdc25.

Which of the following combination is incorrect?

TLS Online TPP Program

#Question id: 12484

#Unit 2. Cellular Organization

Match the following.

Column I	Column II
A. APC/CCdc20	i . responsible for ubiquitinating proteins, such as mitotic cyclins
B. APC/CCdh1	ii. responsible for destroying proteins, such as securin
	iii. promotes the metaphase–anaphase transition
	iv. Promotes exit from mitosis

Which of the following is correct?

TLS Online TPP Program

#Question id: 12485

#Unit 2. Cellular Organization

Following statements are regarding to the centrosome cycle of an animal cell.

A. During G1, the daughter procentrioles continue to elongate.

B. During S phase, daughter procentrioles form adjacent to maternal centrioles so that two pairs of centrioles become visible within the centrosome. 

C. During G2 phase, the centrosome contains a single pair of centrioles.

D. At the beginning of mitosis, the centrosome splits, with each pair of centrioles becoming part of its own centrosome. As they separate, the centrosomes organize the microtubule fibres that make up the mitotic spindle.

Which of the following option is correct? 

TLS Online TPP Program

#Question id: 12486

#Unit 2. Cellular Organization

Which of the following process occur in prometaphase?

TLS Online TPP Program

#Question id: 12487

#Unit 8. Inheritance Biology

Neurofibromatosis type 1 is one of the most common autosomal dominant disorders. A woman with neurofibromatosis type 1 has an unaffected partner. Which of the following is correct regarding their children?

TLS Online TPP Program

#Question id: 12488

#Unit 8. Inheritance Biology

Retinoblastoma usually occurs as a sporadic event but in around 10% of cases there is a positive family history due to autosomal dominant inheritance. In these families the penetrance is approximately 80% (= 0.8). A woman with retinoblastoma, whose father and grandfather were also affected, has an unaffected partner with no relevant family history. Which of the following is correct regarding their children?