Answer:
C. Chromosomes
Explanation:
During fertilization in sexual reproduction, the nucleus of the male sperm cell fuses with the nucleus of the female egg cell. Chromosomes from the sperm combine with chromosomes from the egg to give the new cell a unique genetic make-up.
Answer: transcription, nucleus
Explanation:
In eukaryotic cell the process whereby the sequence of DNA bases is used to determine the sequence of bases in mRNA us called transcription and it occurs in the nucleus.
The DNA serves as the template strand. RNA polymerase binds to the promoter on the template DNA strand and synthesizes mRNA with RNA nucleotides. Genetic information of DNA is transcribed to messenger RNA. In eukaryotes this process occurs in the nucleus.
Hey There Noah ,
A food that is high in Calories and could be used for energy storage in animals is MOST LIKELY high in
A) lipids.
B) proteins.
C) carbohydrates.
D) nucleic acids
A) lipids.<span> </span>
In human, Reproduction is done when two gametes i.e a sperm and an ovum fuse to give a zygote and eventually an offspring.
<h3><u>
Explanation:</u></h3>
Reproduction is the process by which a living organism can produce more individuals of same species to continue a race. Reproduction is of various types - asexual reproduction and sexual reproduction.
But in human, only sexual reproduction is seen. Here in human, males do produce sperms in their testis from the sperm mother cells by means of meiosis. Females do produce ovum in their ovary by means of meiosis from ovum mother cell.
Now the fertilization in human is internal fertilization which is achieved by means of coitus or sex between a male and female, where the male inserts his penis into female vagina to release the sperms. These sperms do swim into uterus and then into ampulla region of fallopian tube where it meets the ovum, and fertilization occurs. Then the zygote swims to uterus by passive movements and settle there which is called implantation. Then eventually the cell divisions lead it into a multicellular embryo and then after a gestation period of about 278 days, the baby is delivered. A new offspring is born.
A substrate fits into the active site of an enzyme like a lock and key. The substrate has a certain shape that matches or is very similar to the shape of the enzyme so it's the perfect fit, like "a lock and key."
