Fertilization

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11. By what mechanism does diploid animal grow after fertilization?

mitosis

12. Fertilization ___.

all of the above

conjugation

an act of fertilization involving the transfer of cell contents to another cell; usually occurs in simpler organisms

homologous chromosomes

chromosomes that are the same in size and shape and control the same characteristics; occur in pairs in higher animals and plants

10. By what reproductive mechanism does a haploid animal grow?

completely by mitosis

6. The process by which isogamous organisms exchange genetic information during fertilization is called ____.

conjugation

7. Most aquatic animals use ____.

external fertilization

9. What is the basic type of cell found in the simplest animals?

haploid

haploid

having a single, complete set of chromosomes, or one half of each pair of homologous chromosomes

diploid

having chromosomes in homologous pairs

5. How do flowering plants reproduce by fertilization if they are immotile?

Insects and other organisms carry pollen to other flowers.

8. ____ is most common among terrestrial animals.

Internal fertilization

1. Human gametes are ____.

oogamous

fertilization

the fusion of gametes to produce a new cell or zygote; often said to be the unison of egg and sperm

zygote

the result of fertilization in which two gametes have fused together; often simply called a fertilized egg

pollination

transfer of pollen from male to female cones in gymnosperms, or from another to stigma in flowering plants

3. Fertilization occurs when ____.

two gametes come together and chromosomes combine

4. Once an egg has been fertilized, ____.

* a zygote is formed * a barrier to other sperm forms immediately

internal fertilization

a mating pattern in which the male and female come close together, the male introduces the sperm into the body of the female, and fertilization occurs

external fertilization

a type of mating pattern in which eggs and sperm are released into the water after the mating partners come near one another; occurs outside the body of the female

2. Gametes that are the same in size and shape is known as ____.

isogamy


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