Lethality is govemed by
(A) Multiple alleles
(B) Lethal allels
(C) Dominant gene
(D) All of these

python code. instructions are given within the quotations for each function.

1) def invert_dict(d): “””   Given a dictionary d, create the invert of the dictionary where   the key is a value v in d, and v is mapped to a set of keys in original   d whose values are equal to v.   Return the inverted dictionary mapping value to set of keys   “””

return {1:1}

2) def histogram(words):

“””   Given a list of words, create a histogram dictionary where the key   is the length of a word and the value is the count of how many   words in the list are of that length.   Return the histogram dictionary mapping length to word counts   “””

return {1:1}

q181:

3) def max_kv(d):”””

Given a dictionary, return a tuple of key value pair where the key   is the larges in d.   “””

return (1, {1}

4) def run():”””

Get words list from the file listed in argv[1];   create histogram of count of each word length;   create invert dictionary that maps count to list of word length;   use invert dictionary to find the list of word length with the   most popular word count (use max_kv)   “””

words = get_words(argv[1])

# fill in code here

# modify the line below so that count, length_set has the right values count, length_set = 1, {1}

print(f”These word length {length_set} each has {count} words.”)