its H because his maternal grandfather is on his moms side of the family and has the recessive allele not his grandfather on his dad's side
It is called the Epidermis. The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone. The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.
Answer:
Please find the summary of what happens during DNA replication below
Explanation:
DNA replication is the process by which a DNA molecule is duplicated into two identical copies. It occurs in the nucleus of the cell prior to any cellular division. The process includes:
- The double stranded DNA is first unwound by an enzyme called DNA HELICASE into a replication fork consisting of two single strands of DNA.
- Another enzyme called DNA POLYMERASE binds to the DNA and begins to add NUCLEOTIDES to each strand using complementary base pairing rule i.e. A-T, G-C. To do this, short sequences of RNA called PRIMER are synthesized by an enzyme called PRIMASE, which serves as building block for DNA polymerase to act.
- However, DNA POLYMERASE can only work in the 5'-3' direction i.e. on the leading strand which runs from 3'-5' direction. Short pieces of DNA called OKAZAKI fragments are synthesized on the lagging strand, which runs from 5'-3' direction.
- An enzyme called LIGASE joins the okazaki fragments together into a whole DNA on the lagging strand.
After the replication process which follows the SEMI-CONSERVATIVE MODEL of replication, each DNA molecule will contain one old strand called PARENT STRAND and one NEW strand.
Answer:
Cancer is a disease in which abnormal cells divide uncontrollably and destroy body tissue.
Explanation:
Cancer is caused by gene mutations, which are sometimes caused by inherited gene mutations (ones you are born with), or mutations that occur after birth (i.e smoking, being overweight, chronic inflammation, viruses, cancer-causing chemicals (carcinogens), hormones, and lack of exercise.)
Your habits (drinking alcohol frequently etc. )
And family history are the main influences of cancer.
However, inherited cancer is usually rare.
Hope this helps!!!
I used to study medicine and so I know a lot about this.
