B15 Reproduction

Question 1

Sexual reproduction?

Answer 1

Joining (fusion) of male and female gametes

Question 2

What type of cell division is involved in sexual reproduction?

Answer 2

Meiosis

Question 3

What type of cell division is involved in asexual reproduction?

Answer 3

Mitosis

Question 4

Meiosis?

Answer 4

Cell division that produces four daughter cells (gametes), each with a single set of chromosomes

Question 5

What r the male and female sex chromosomes in humans?

Answer 5

XX - female 💃
XY - male 👦

Question 6

What r the male and female gametes in flowering plants?

Answer 6

Pollen- male gamete
Ovule - female gamete

Question 7

What is the genetic material in cells called?

Answer 7

DNA 🧬

Question 8

What is the structure of DNA 🧬?

Answer 8

Two complementary strands forming a double helix

Question 9

Gene?

Answer 9

Small section of DNA 🧬 that codes for a particular amino acid sequence, to make a specific protein

Question 10

Alleles?

Answer 10

Different forms of the same gene

Question 11

Recessive allele?

Answer 11

Allele that needs to be present twice to be expressed

Question 12

Dominant allele?

Answer 12

Allele that is always expressed 🚛, even if only one copy is present 🎁

Question 13

Genome?

Answer 13

The entire genetic material of an organism

Question 14

Homozygous?

Answer 14

Two of the same alleles present in an organism

Question 15

Heterozygous?

Answer 15

Two different alleles present in an organism

Question 16

What type of allele causes polydactyly?

Answer 16

Dominant allele

Question 17

What type of allele causes cystic fibrosis?

Answer 17

Recessive allele

Question 18

How many chromosomes do normal human body cells have?

Answer 18

23 pairs (46)

Question 19

Y is studying the human genome important?

Answer 19

Search for genes linked to certain diseases 😷
Understanding and treatment of inherited disorders
Tracing past human migration