cells and DNA

Question 1

Recall the human cell that contains 23 pairs of Chromosomes

Answer 1

23 pairs for the total of 46.

Question 2

what does Variation mean

Answer 2

the difference between the member of the same species

Question 3

what dose continuous or discontinuous mean

Answer 3

continuous means can have any numerical value and discontinuous are fixed values

Question 4

what is genetic and environmental variation

Answer 4

genetic variation is controlled by your DNA and only your DNA ex. your eye colour, sex, inherited diseases, and blood type
environmental variation is controlled by the environment and your DNA like; your hair colour, skin colour, hight, weigh, ect ect…

Question 5

what are bases

Answer 5

bases are what genes are made of there are A, C, T, G and they are arranging in different order to make the genetic makeup.

Question 6

what are alleles

Answer 6

their the different types of certain genes.

Question 7

what are genes

Answer 7

their the things that determines the certain characteristics of an organism.

Question 8

what are chromosomes

Answer 8

their what carries the DNA and their 23 pairs of chromosomes in very normal human cell

Question 9

what is Asexual and sexual reproduction and how does it work

Answer 9

asexual reproduction is when the chromosomes duplicates its self and separates
sexual is when you take away half of the chromosomes from both parents (there are 6) and make a baby.

Question 10

How do Asexual and sexual reproduction affect variation

Answer 10

Asexual reproduction has no variation because it produces identical offspring
Sexual reproduction has variation because it produces genetically different offspring.

Question 11

what dose homozygous mean

Answer 11

you inherited two of the same alleles (homo=same)

Question 12

what does heterozygous mean

Answer 12

your two alleles are different from each other (hetero= different)

Question 13

what is genotype

Answer 13

genotype is the alleles you have in your genes

Question 14

what is phenotype

Answer 14

it is what you can see on a persons characteristic ex. eye colour

Question 15

what is dominate and recessive

Answer 15

dominate is the allele that will dominate the recessive,
but if you have two recessives your phenotype will be the recessive. But if you have both you will have the dominate phenotype
dominate (capital letter) recessive (lowercase)

Question 16

how do you determine the sex of the offspring

Answer 16

in every human cell there is one pair of chromosomes that determines the sex
for female its XX, male is XY
what determines the sex of the offspring is whether the sperm is X or Y