1) Which describes a chromosome? (1 point)
A. a fertilized cell
B. a place where genetic information is stored
C. a stage of cell division
D. a male or female gamete
2) Which statement best describes the process of crossing over?(1 point)
A. Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
B. Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
C. Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.
D. Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.
3) A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father does not have it (xx), but the mother does (Xx). If they had two children, a son and a daughter, what would the completed Punnett square look like (i.e., would the son have the trait, would the daughter have the trait)? (1 point)
A. One child would inherit the trait and one child would not.
B. Both children would not inherit the trait.
C. Both children would inherit the trait.
D. Each child has a 50% chance of inheriting the trait.
4) Which cell replicates via meiosis?(1 point)
A. red blood cell
B. skin cell
C. heart cell
D. sperm cell
5) How is fern reproduction different than human reproduction?(1 point)
A. Ferns have one set of reproductive processes.
B. Ferns use sexual and asexual reproduction.
C. Ferns create diploid and haploid cells.
D. Ferns undergo meiosis during reproduction.
1) B. a place where genetic information is stored.
2) A. Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
3) D. Each child has a 50% chance of inheriting the trait.
4) D. sperm cell
5) B. Ferns use sexual and asexual reproduction.
1) The correct answer is B. A chromosome is a structure in the cell nucleus where genetic information is stored. To get the answer, you can use your knowledge of basic genetics or do a quick search using a reliable source like a biology textbook or reputable website.
2) The correct answer is A. Crossing over is a process that occurs during meiosis where homologous chromosomes pair up, and non-sister chromatids exchange genetic material. To get the answer, you can recall your knowledge of meiosis or search for information about crossing over in meiosis.
3) The correct answer is D. Each child has a 50% chance of inheriting the trait. To determine this, you would need to complete a Punnett square using the genotypes of the parents (Xx and xx) and analyze the possible combinations of alleles for the children. You can do this either by drawing the Punnett square on paper or using an online Punnett square calculator.
4) The correct answer is D. Sperm cells replicate via meiosis. Meiosis is a type of cell division that produces gametes (sex cells) with half the number of chromosomes as the parent cell. To verify this, you can search for information about meiosis and the types of cells it produces.
5) The correct answer is B. Ferns use both sexual and asexual reproduction. They produce spores thual reproduction, where specialized structures called gametangia produce gametes that combine to form a new fern plant. Ferns can also reproduce asexually through processes like fragmentation and vegetative propagation. To confirm this, you can search for information about fern reproduction and compare it to human reproduction.
1. B
2. A
3. D
4. D
5. B
these are the answers I got and I'm just wondering if they're correct or not
1 is correct
2 I think is correct
3 I think it’s A
4 is correct
5 I think it’s correct
Hopefully this helps and pls correct me if I’m wrong!