Answer:
thymine
Explanation:
the answer is thymine I'm 100% sure
Answer:
The correct answer is b. recognizes foreign DNA sequences that have previously entered the cell and directs the Cas proteins to destroy them.
Explanation:
Clustered regularly interspaced short palindromic repeats (CRISPER) is the sequences of DNA found in the genome of prokaryotes and archaea. These sequences are added at a crisper locus in DNA by bacteria through capturing bacteriophage DNA during infection.
Then this sequence is used to detect a similar sequence of bacteriophage during subsequent infection and destroy them by Cas9 enzyme. Cas 9 enzyme uses a crisper sequence as a template to destroy similar phage DNA.
So the CRISPER Cas system provides an adaptive defense mechanism to bacteria against foreign DNA coming from bacteriophage. Therefore the correct answer is b.
The correct answer is C.
As we can see in the graph above, there is a great difference in survival of moths of different colors in different habitats ( light and dark trees).
Light moths are more successful on light trees than the dark moths, the dark moths have higher survival rates on the dark trees.
But, the difference in survival rates is greater on dark trees than in the light trees.
As we can see, the dark moths have an almost 100 % survival rate on the dark trees, compared to around 70% for light moths on light trees.
Therefore, we can conclude that the dark moths on the dark trees are the most successful.
Answer:
C.) Sepal, Petal, Stamen, Carpel
Explanation:
