Answer 1

You need to be a lot more specific about what you mean by "turtle coding".
Turtle is over 40 years old and many projects were inspired by it. There are many ways to implement a for loop with the various turtle projects.

Many Turtle-inspired projects don't use a specialized Turtle programming language like Logo( https://en.wikipedia.org/wiki/Logo_(programming_language) ). Many structure a for-loop using a more popular language like Python, Java, or JavaScript.

If you're actually using the Logo programming language, I think "repeat" is the closest to a for-loop. This explains and gives examples of loops in Logo: https://fmslogo.sourceforge.io/workshop/basic-loops.shtml

If you were using Python's turtle package, this explains the for loops and lets you run a simple example: https://runestone.academy/runestone/books/published/thinkcspy/PythonTurtle/IterationSimplifiesourTurtleProgram.html

This guy made his own Turtle-inspired project in c++ and shows a for-loop:
https://youtu.be/uqksPVmEc5g?t=1162