Which of the following organisms is uni-cellular?

The step in cell division in which chromosomes line up at the middle is called

a change or error in the structure of a gene or chromosome is called a

This happens when a sperm and egg cell unite

sperm and egg cells have

Traits that pass from parents to offspring are _______________.

a _______________ is the part of a chromosome that carries information that controls a trait

_______________ takes place when pollen grains are moved from a stamen to the sticky top of the pistol of a flowering plant.

a cell formed by fertilization is called a _______________. It gets all of the chromosomes that are in a sperm and egg cell.

a gene whose effect is hidden is called a _______________.

A gene that can hide the effect of a recessive gene is called a _______________.

a organism with one dominant and one recessive gene for a trait is a _______________.

this scientist studied inheritance in pea plants

experimented with fruit flies to learn about chromosomes

Produced pictures of DNA that gave clues about its structure

Used pictures from Franklin to build the first model of DNA

Use punnet square for a cross between two guinea pigs. One parent has the dominant trait RR for rough fur and the other parent is recessive for smooth fur, rr. How many of the offspring would have rough fur?

Draw a punnet square for a cross between two guinea pigs. One parent has the dominant trait RR for rough fur and the other parent is recessive for smooth fur, rr. How many would have smooth fur?

Which of these is the correct order for the steps in mitosis?

which step produces two identical new cells?

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