Homeobox genes are a large family of similar genes that direct the formation of many body structures during early embryonic development. In humans, the homeobox gene family contains an estimated 235 functional genes and 65 pseudogenes (structurally similar genes that do not provide instructions for making proteins).
Palindromes. A palindrome is a sequence of letters and/or words, that reads the same forwards and backwards.  able was I ere I saw elba  is a palindrome. Palindromes also occur in DNA.There are two types.. Palindromes that occur on opposite strands of the same section of DNA helix. 5' GGCC 3' 3' CCGG 5'. This type of palindrome serves as the target for most restriction enzymes. The graphic shows the palindromic sequences seen by five restriction enzymes (named in blue) commonly used in recombinant DNA work.
Word & Letter Play Forward and Backward. A palindrome is a word (or phrase or sentence) that reads the same from left to right as it does from right to left. For example, a palindrome that means trick or joke is gag. For each of the definitions below, suggest a palindrome. 1  Midday. 2  Title for a lady. 3  Tier. 4  Sound a chick makes. 5  Part of the human body. 6  Something that fails to work. 7  An entertainer's short-term job. 8  Short, quick, down-and-up motion. 9  Screwball. 10  Sound a horn makes.