During gastrulation in the frog, the very first cells to move into the interior of the embryo through the blastopore come from the surface layer of cells in the marginal zone; they will become:

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#Question id: 15138

#SCPH01 Biochemistry

Match the items in group 1 with an appropriate description in group 2.

Group 1                                                                Group 2

(P) SWISS PROT                                 (1) derived protein structure database 

(Q) Local alignment                          (2) protein sequence database

(R) CATH                                             (3) GAP

(S) Global alignment                        (4) Smith–Waterman algorithm

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#Question id: 4155

#SCPH01 Biochemistry

Of all the possible triplet codons, __ do not code for an amino acid.

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#Question id: 5067

#SCPH06 I Botany

The yolky eggs of birds undergo:

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#Question id: 12909

#SCPH06 I Botany

According to the diagram, arrange the steps in correct order: 

1. DNA is then digested by the Cas9 nuclease at specific points on both DNA strands. 

2. Homologous recombination to repair the break and incorporate the new DNA sequence then follows. 

3.The nuclease Cas9 is targeted to DNA by a guide RNA consisting of a specific 20 nucleotide spacer/targeting sequence (crRNA).

 4. That identifies the DNA to be modified, linked to a trans-activating (tracrRNA) sequence necessary for the recruitment and stability of Cas9 nuclease.

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#Question id: 4327

#SCPH05 I Biotechnology

What would occur if the repressor of an inducible operon were mutated so it could not bind the operator?