Unit 1 Exam

Question 0

What is a pistil?

Answer 0

It is the seed producing part of the flower, this is the FEMALE reproductive part of the plant

Question 1

What is DNA and what does it stand for?

Answer 1

It is a long ladder like structure which holds information about your inherited traits. It stands for deoxyribonucleic acid.

Question 2

What is the stamen?

Answer 2

The part of the flower in which contains the pollen, this is the MALE reproductive part.

Question 3

What is angiosperm?

Answer 3

They are flowering plants, they produce flowers

Question 4

What is gymnosperm?

Answer 4

They produce seeds in cones, cone producing plants

Question 5

What is a spore?

Answer 5

They are single called reproductive structures

Question 6

What is a seed?

Answer 6

They are multi called reproductive structures.

Question 7

What is a dominant trait?

Answer 7

A trait that will automatically present on the offspring when given. Only one parent is needed to supply this trait.

Question 8

What is a recessive trait?

Answer 8

It is a trait that both parents are needed to supply. If in the genetic code it might not show up if a dominant trait is present.

Question 9

What is asexual reproduction and sexual reproduction? Also give examples of both.

Answer 9

Asexual- type of reproduction where only one parent is needed. An example of this is binary fission.

Sexual- type of reproduction where two parents are needed.

Question 10

What is a transgenic animal or organism?

Answer 10

This is an organism that is produced by moving the DNA of one organism to another to create a new genetic combination.

Question 11

What is meiosis?

Answer 11

This is the duplication of gametes, or sex cells. This happens by having 23 pairs of chromosomes which then double into 46 pairs. After that they split. Each with 23 pairs(two now) they then split once again creating 4 different sets of 23 SINGLE chromosomes.

Question 12

What is mitosis?

Answer 12

This is the duplication of somatic cells, or body cells. The 23 pairs of chromosomes duplicate to 46 pairs then they spilt leaving you with two 23 pairs of chromosomes which are the same.

Question 13

What is a gene?

Answer 13

It is a part of DNA which controls(codes) how a cell functions.

Question 14

What is genetic engineering/ biotechnology?

Answer 14

It is the process of growing artificial genes to create human organs in different organisms.

Question 15

What is a Chromosome?

Answer 15

Ina cell they are tightly packed strands of DNA.

Question 16

What is DNA made of?

Answer 16

Sugars and phosphates.

Question 17

What is a genetic code?

Answer 17

They control the sequences of the proteins that form DNA.

Question 18

What are the “rungs on the ladder” made of? (chromosomes)

Answer 18

It is made of nitrogen based in 4 forms.
Adenine-Thymine
(^pairs that always go together)
Guanine-Cytosine

Question 19

What is Meiosis?

Answer 19

Formation of sex cells.

Question 20

What is mitosis?

Answer 20

Formation of somatic cells

Question 21

What does nature vs. nurture mean?

Answer 21

It is a debate that states the nature side of it is that the traits come from your genes and nurture traits come from how you where raised.

Question 22

What are the types of asexual reproduction and explain.

Answer 22

Binary fission- where the original cell duplicates all its material inside. When done duplicating it splits in half leaving two identical cells.

Asexual spores- where one parents produces a spore which is carried out and lands somewhere. It then grows where ever it lands.

Vegetative growth in plants- where someone cuts off a part of a plant then planting that part somewhere else.

Budding- where one parents produces a “bud” on itself. When this bud is completely grown it detaches and lives.

Question 23

What is bacterial conjugation?

Answer 23

This is where two parents create a connection in which they exchange genetic material but no offspring is created.

Question 24

Explain the human life cycle.

Answer 24

Gametes- both male and female sperms and eggs meet together

Zygote- produced when male sperm and female eggs fertilization occurs

Embryo- produced when zygote develops enough to have 23 pairs of chromosomes.