First the 23 parental pairs of chromosomes match up at the centre of the sex cell.
From the newscientist.com
Each member of the pair becomes part of the separate sex cell.
From the en.wikipedia.org
Then only if that sex cell participates in the genesis of an embryo does the mutation contribute a new allele to the population.
From the en.wikipedia.org
Some are involved with running day to day cell activities, others are responsible for growing the pollen tube, and lastly there is the actual gamete or sex cell.
From the newscientist.com
I suppose it's an old-fashioned-style village romance novel, but with sex and cell-phones.
From the books.scoop.co.nz
Sex photos were on the convicted sex offender's cell phone.
From the sacbee.com
Vue answered that he and his wife laughed off the cell phone sex shots.
From the sacbee.com
Somatic sex identity is cell autonomous in the chicken.
From the sciencedaily.com
In one case, he reportedly sent a man to solitary confinement so Stout could have sex with his cell mate.