Love or
Clone?
Clone?
What type of reproduction involves only one parent and creates genetically identical offspring?
Asexual reproduction
What is the purpose of meiosis?
To create gametes with half the number of chromosomes
What is the function of RNA?
To help make proteins from DNA instructions
How many chromosomes do humans have in their body cells?
46 chromosomes
Which force keeps people from floating away while on earth?
1. Equilibrium
2. Gravity
3. Magnitude
4. Grounding
Gravity
Which type of reproduction increases genetic diversity in a population?
Sexual reproduction
How many daughter cells are produced in meiosis, and how do they compare genetically?
4; genetically unique
What is the first step of protein synthesis called?
Transcription
What are homologous chromosomes?
Chromosome pairs that have the same genes but may have different alleles
Which of the following phases cannot change shape?
1. Solid
2. Liquid
3. Gas
Solid
Name one advantage of asexual reproduction and one advantage of sexual reproduction?
Sexual reproduction- genetic diversity
What is crossing over, and when does it occur?
Homologous chromosomes exchange DNA during prophase 1
Where does transcription take place?
In the nucleus
Where are chromosomes found?
DNA
What is it called when stars are grouped together?
1. Zodiacs
2. Astrology
3. Constellations
Constellations
What process in sexual reproduction ensures offspring have the correct number of chromosomes?
Meiosis
How is meiosis different from mitosis?
Meiosis produces haploid cells, mitosis produces diploid cells
What are the 3 steps of transcription in order?
Initiation, Elongation, Termination.
What is the difference between a chromatid and a chromosome?
A chromatid is one half of a chromosome
Which organ in the body is responsible for pumping blood?
Heart
Name one organism that reproduces asexually and one that reproduces sexually.
Bacteria (asexual) Human (sexual)
If a diploid organism has 40 chromosomes in its body cells, how many chromosomes are in its gametes?
20 chromosomes
What happens to mRNA in the last step of transcription?
mRNA leaves the nucleus
How many chromosomes does a haploid cell contain?
23
What do plants breathe in?
Carbon Dioxide