Reproduction 1 and 2 (educake) Flashcards
What is the name of the human male gamete?
sperm cell
In bacteria what name is given to asexual reproduction?
binary fission,
which literally means “splitting into two”.
Which type of microorganism reproduces using spores?
Fungi reproduce via spores. Fungal spores serve a similar function to the seeds of plants.
Which type of reproduction only needs one parent?
Asexual reproduction only requires one parent.
What is the missing word? An advantage of __________ reproduction is that all good characteristics are passed on.
asexual
A disadvantage of sexual reproduction is that _____ parents are needed. What number completes the sentence?
2
Does sexual reproduction produce offspring that are genetically identical or different?
genetically different to each other and to the parents.
Which type of reproduction requires less time and energy?
Asexual reproduction
it is a much quicker, less energy-demanding process than sexual reproduction. Only one individual is needed.
Which type of reproduction occurs by mitosis?
Asexual reproduction
What is the name of the human female gamete?
egg cell
What is the scientific name for a sex cell?
gamete
How many pairs of chromosomes are found in human body cells?
23 pairs of chromosomes
How many sets of 23 chromosomes are found in human sex cells (gametes)?
Human sex cells, known as gametes, contain one set of 23 chromosomes as opposed to the 2 sets contained in all other body cells.
What is a genetically identical individual made by asexual reproduction known as?
a clone
In asexual reproduction, how many parents are needed?
one parent
What type of reproduction involves the fusion of male and female gametes?
Sexual reproduction
What type of gamete is able to move itself using a tail?
sperm cell
True or false? Pollen grains are the female gamete in the plant.
false
They are the male gamete.
What is the missing word? A disadvantage of sexual reproduction is that production of offspring is __________.
slower/slow
since a lot of time and energy is invested in producing the offspring.
Daffodils and strawberry plants both reproduce using which method?
Daffodils and strawberry plants can reproduce both asexually and sexually.
Which type of reproduction gives rise to variation in the offspring?
sexual
Malarial parasites reproduce one way in a human host, and another way in a mosquito. Which type of reproduction do they use in a human host?
asexual reproduction
In fungi what is produced by asexual reproduction?
thousands of microscopic spores.
How many chromosomes will the white blood cell have?
46
Malarial parasites reproduce one way in a human host, and another way in a mosquito. Which type of reproduction do they use in a mosquito?
sexual
Malarial parasites reproduce sexually while they are parasitising a mosquito.
In humans, how many pairs of chromosomes determine the sex of the individual?
1
In humans, one pair of chromosomes known as the sex chromosomes determines the sex, male or female, of the offspring.
During meiosis, sperm cells are produced that carry X or Y sex chromosomes. What percentage of sperm cells carry a Y chromosome?
50% contain an X chromosome and 50% contain a Y chromosome.
What is the missing letter? During meiosis, egg cells are produced that only carry the sex chromosome __ .
X
Females inherit an X chromosome from both the egg and sperm making them XX. All egg cells produced as a result of meiosis contain an X chromosome.
How many times does a cell divide during meiosis
2
Where are sperm cells produced
Sperm cells are produced by meiosis in the testes.
What type of cell division occurs when an embryo is developing into a new individual?
mitosis
Meiosis only occurs in the __________ organs. What one word completes the sentence.
reproductive
namely the ovaries in females and the testes in males.
in meiosis what type of cell will the daughter cells become?
Its become a gamete as they develops into sex cells
Fertilisation occurs when which part of the sperm and the egg cell fuse?
Nuclei
Fertilisation
the fusion of an egg cell nucleus with a sperm cell nucleus to form a zygote.
How many chromosomes will the ovum have?
23
How many gametes are formed as a result of one cell dividing by meiosis?
Each time a cell divides by meiosis, 4 new cells are produced.
True or false? When a cell divides by meiosis, it forms four identical gametes.
false
When a cell divides by meiosis, the four resulting gametes are not identical to each other.
True or false? When a cell divides by meiosis, it forms two pairs of identical gametes.
false
Mitosis can produce genetically identical daughter cells, but meiosis produces genetically unique cells.
During the process of meiosis, how many divisions occur?
2
in meiosis, how many chromosomes will there be in each of the 4 daughter cells?
23
Daughter cells produced by meiosis each contain 23 chromosomes in their nuclei.
