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Inheritance and variation

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Total cards: 24•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (24)

#1
Front (Question)

define sexual reproduction

Back (Answer)

Involves two parents where the male and female gametes join together to form a zygote

#2
Front (Question)

define asexual reproduction

Back (Answer)

involves just one parent with the offspring identical to the parent

#3
Front (Question)

3 examples of asexual reproduction

Back (Answer)

strawberries- runners onions-bulbs potatoes-tubers

#4
Front (Question)

example of a one celled organism asexual diving

Back (Answer)

amoeba - nucleus divides, cytoplasm divides, two daughter cells form

#5
Front (Question)

define variation

Back (Answer)

the way members of the same species differ as a result of mutations.

#6
Front (Question)

define mutations

Back (Answer)

changes in DNA

#7
Front (Question)

define species

Back (Answer)

a group of organisms that are capable of breeding with each other and producing fertile offspring

#8
Front (Question)

define fertile

Back (Answer)

an organism that is capable of producing young

#9
Front (Question)

define chromosomes

Back (Answer)

lengths of dna wrapped around protein

#10
Front (Question)

what shape does dna have

Back (Answer)

double helix

#11
Front (Question)

how many chromosomes in human cells - explain the difference in females and males

Back (Answer)

46 - 22 pairs are the same in both males: 1 X and 1 Y chromosome females: 2 X chromosomes

#12
Front (Question)

what sort of backbone does dna have

Back (Answer)

sugar phosphate

#13
Front (Question)

the 2 cylinders in the middle of DNA strand, what are they?

Back (Answer)

bases - guanine and cytosine

#14
Front (Question)

C in dna

Back (Answer)

cytosine

#15
Front (Question)

g in dna

Back (Answer)

guanine

#16
Front (Question)

a in dna

Back (Answer)

adenine

#17
Front (Question)

t in dna

Back (Answer)

thymine

#18
Front (Question)

what connects the cylinders (bases?) together in the middle of a DNA strand?

Back (Answer)

hydrogen bonds

#19
Front (Question)

define genes

Back (Answer)

lengths of DNA along a chromosome. each gene controls the making of a particular protein

#20
Front (Question)

where are the pairs of genes controlling a particular trait located?

Back (Answer)

each gene on a chromosome has a corresponding gene controlling the same trait in the same place on its partner chromosome

#21
Front (Question)

how does the cell division in ovaries and testes differ?

Back (Answer)

they undergo a special type to form gametes with only half the chromosomes, so that when one sperm cell of 23 chromosomes joins with an egg cell of 23 chromosomes, a zygote is made!!

#22
Front (Question)

What’s inheritance

Back (Answer)

The way traits are passed from parents to offspring

#23
Front (Question)

How many factors (genes) does each cell carry for the control of each trait? What cell is the exception and how does that one work?

Back (Answer)

Two: gametes carry only one factor and they have two when they join during fertilization to form a zygote

#24
Front (Question)

What’s the name of the guy with genetics?

Back (Answer)

Mendel (Mendelian inheritance, Mendelian crosses)