why don't offsprings always looks like their parents?

Question 1

genetics

Answer 1

the study of heredity

Question 2

heredity

Answer 2

passing of traits to offsprings

Question 3

traits

Answer 3

charaistics parent(s) are able to pass to offsprings

Question 4

order of DNA (small - large)

Answer 4

gene, dna, chromosome, cell, nuecelus

Question 5

what does genes control?

Answer 5

traits

Question 6

how are genes passed on?

Answer 6

randomly

Question 7

how many genes are in a human body?

Answer 7

20,000-25,000

Question 8

alleles

Answer 8

different types of traits, 1 allele from each parent

Question 9

gentotype

Answer 9

a combonation of allele

Question 10

phenotype

Answer 10

physical trait

Question 11

hertozygous (hybrid)

Answer 11

mix of different alleles (Bb)

Question 12

homozygous (purebred)

Answer 12

the same alleles (BB, bb)

Question 13

polygenetics

Answer 13

traits controlled by multiple genes

Question 14

mutation

Answer 14

change in DNA that codes for a specific gene, change in chromosome shape/number

Question 15

change DNA:

Answer 15

copying mistake, eviorimental triggers

Question 16

human cell contains:

Answer 16

46 chromosomes, 23 pairs

Question 17

beneficial mutation:

Answer 17

a mutation that has a postive effect on the organism

Question 18

neutral mutation:

Answer 18

a mutation that is neither beneifical nor harmful

Question 19

negative mutation:

Answer 19

a mutation that harms the organism

Question 20

sexual reproduction:

Answer 20

more time, more energy, 2 parents, diverse, ability to remove mutations overtime, DNA from different parents

Question 21

asexual reproduction

Answer 21

less time, less energy, 1 parent, uniform, mutation stays within the population, exact DNA as parent

Question 22

all organisms are driven by instincts to do 2 things:

Answer 22

survive, reproduce