Final Review For Biology34 cards

Tagged as: biology, psychology, computer science, medical, medicine, algebra, math, nursing

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1

What are the main reasons cells divide?

the surface area of the cell membrane becomes too small to transfer materials is cell growth, repair, maintenance .

2

Define asexual reproduction:

production of offspring from one parent

3

Define sexual reproduction:

union of two cells

4

Define binary fission:

cell splitting in two.

5

How do prokaroytes divide and do they have a nucleus?

binary fission, and they have no nucleus.

6

Define spore formation and what kinds of organisms do that?

kind of asexual reproduction by fungi, mold.

7

Define Gametes:

sexual reproductive cells.

8

Define zygote:

fusion of a sperm and an egg

9

What are the results of mitosis?

daughter cell receive exact copy of chromosomes in parent.


11

What happens to the number of chromosomes in meiosis?

reduces the number of chromosomes in half

12

What is interphase?

time between formation of cell through mitosis.

13

What are chromatids?

two joined strands of chromosomes

14

What is cytokinesis?

division of cytoplasm that follows mitosis.


16

What prevents the doubling of chromosomes in each succeeding generation?

meiosis, gamete reproduction, spermatogenisis, oogenesis.



19

Why were pea plants a good choice for Mendel's studies?

displayed several traits in two contrasting forms.

20

What is the filial generation the result of?

cross between two individuals of parental generations.



23

Define the Principle of Independent Assortment:

two contrasting trait when forming gametes.


25

Define Phenotype:

traits actually expressed



28

Define homozygous and testcross:

if a test cross results in offspring being 1 color, the parents must be homozygous.






34

Why do males express certain recessice traits more often than females?

if they receive the single recessive trait on an X chromosome, they have the trait