Ch 4, 7th Grade: Question Preview (ID: 28198)


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The new cell that is formed from fertilization is called a(n)
a) egg b) sperm c) zygote d) embryo
Which is the female sex cell?
a) egg b) sperm c) zygote d) the one with the pink shell
What are diploid cells?
a) cells that have pairs of chromosomes b) cells that have one chromosome from each pair c) cells that have two nuclei d) cells that join together to form a zygote
Homologous chromosomes are genetically identical
a) false b) true c) d)
Every living thing has the same number of chromosomes.
a) false b) true c) d)
What will happen if a zygote has the wrong number of chromosomes?
a) it will not develop properly b) it will develop superpowers c) nothing d) it will not be born
A cell that has only one chromosome for each pair is called a
a) halfloid cell b) haploid cell c) diploid cell d) quark
Which kind of cells are haploid cells?
a) body cells b) skin cells c) sex cells d) bone cells
Meiosis only occurs to form sex cells.
a) true b) false c) d)
How many nuclear divisions occur in meiosis?
a) 1 b) 2 c) 3 d) 4
At the end of meiosis, how many cells are created?
a) 1 b) 2 c) 3 d) 4
After telophase I, how many cells are created?
a) 1 b) 2 c) 3 d) 4
The chromosomes are NOT copied during Prophase II.
a) true b) false c) d)
Meiosis helps maintain the correct number of chromosomes in each generation of offspring.
a) true b) false c) d)
MItosis provides genetic variation within a population.
a) true b) false c) d)
The offspring created during asexual reproduction
a) when nature chooses the best traits for an environment b) when random chance chooses the best traits for an environment c) when humans breed organisms with specific traits in order to get offspring with those traits d) being selective about who you breed with
What is selective breeding?
a) are similar to their parent b) are genetically identical to their parent c) are nothing like their parent d)
Fission is where
a) a prokaryote divides and creates two identical offspring b) two cells join together, creating one offspring c) an offspring develops on the parent until it is mature enough to survive on its own d)
Sexual reproduction allows for a population to grow very rapidly.
a) true b) false c) d)
There is little genetic variation in a population that reproduces asexually.
a) true b) false c) d)
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