If a DNA codon changes from TTA to TTC, what amino acid would the matching mRNA sequence code for?

TTC codon encodes for Phenylalanine (Phe)

Explanation:

A codon (also known as a nucleotide triplet) is a sequence of DNA or RNA composed of three consecutive nucleotides. During protein synthesis, each codon specifies a particular amino acid or stop signal (i.e., termination codons). There are 64 possible codons, 61 encode for amino acids, while three (3) codons represent stop signals (e.g., UAG, UAA, UGA). In this case, TTC (i.e., UUC codon in the mRNA) codon encodes the amino acid Phenylalanine, while TTA (i.e., UUA codon in the mRNA sequence) codon encodes the amino acid Leucine.

substitution is the answer in this case

answer: angiosperms

dicots

angiosperms are highly evolved plants, they produce seeds which are enclosed within in a carple. these are the largest group of plants on earth. they include trees, shrubs, herbs and small flowering plants. angiosperms exhibit a flowering stage in their life cycle. the flower serves the function of reproduction and fruit formation in majority of angiosperms. dicot is the term used to describe flowering plants that have two seed leaves. dicots are plants which develop seeds which split into two parts called cotyledons. each cotyledon contains one embryo.

here, a small purple flower development indicates that the plant belongs to angiosperms and having two embryonic leaves indicates it belongs to dicots.