Which two processes during meiosis increase genetic variation?

crossing over and independent assortment

Two unaffected parents have a child affected by a trait. What does this tell you?

the trait is recessive and the parents are carriers

males have only one X chromosome, so a single recessive allele is expressed

it produces genetic variation in the offspring

a stable, unchanging environment

12questions. Pick an answer and you'll see why right away.

A human body cell has 46 chromosomes. How many chromosomes are in a gamete made by meiosis?
Which two processes during meiosis increase genetic variation?
Two heterozygous tall pea plants ( $Tt$ ) are crossed, where tall (T) is dominant. What phenotype ratio is expected?
What is the genotype ratio from a cross of $Tt \times Tt$ ?
Red and white snapdragons crossed give all pink offspring. This shows:
Which blood-type genotype produces type O blood?
In a pedigree, what does a shaded square represent?
Two unaffected parents have a child affected by a trait. What does this tell you?
Why do X-linked recessive traits appear more often in males?
What is the main advantage of sexual reproduction?
In which environment is asexual reproduction most advantageous?
A father is blood type O ( $ii$ ) and a mother is type AB ( $I^A I^B$ ). What blood types can their children have?