Which of the statements are true?(multiple answers) Group of answer choices Circular chromosomes are found inside the mitochondria. The genotypic ratio can be modified by the different gene interactions. Gene expression is determined by the genome sequence and it cannot be altered by the environment or other stimuli. Polygenetic inheritance follows Mendel's law of inheritance
Added by Patricia R.
Step 1
2) The genotypic ratio can be modified by the different gene interactions. 3) Gene expression is determined by the genome sequence and it cannot be altered by the environment or other stimuli. 4) Polygenetic (polygenic) inheritance follows Mendel's law of Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 101 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Question 33 (0.5 points) A ratio of 1:4:6:4:1 suggests ________. polygenic inheritance low environmental influence high environmental influence five genes are involved Question 34 (0.5 points) Small circular pieces of bacterial DNA that are used as vectors in are called phages viruses plasmids chromosomes none of the answers are correct
Adi S.
Autosomes are special chromosomes that determine an organism's sex. True False 2. A trait's heritability is the proportion of its variation that a. results from the environment alone. b. is inherited. c. cannot be explained. d. is the product of genes and environment. 3. The expression of polygenic traits is a. determined by multiple genes at one locus. b. determined by genes at several loci. c. determined solely by the influence of environmental factors. d. never determined by the influence of environmental factors. 4. Many of the traits we see in dogs today are the result of natural selection. True False 5. An individual who is homozygous for a trait will always pass on the same version of an allele. True False 6. The term "reduction division" describes: a. Meiosis 1 b. Meiosis 2 c. Mitosis d. Protein Synthesis
Madhur L.
A diploid cell contains 4 homologous chromosome pairs. Chromosome pair #1 contains two loci and is homozygous for both loci: gene A and gene B. Chromosome pair #2 is heterozygous for gene C. Chromosome pair #3 is homozygous for gene D. Chromosome pair #4 is homozygous for gene E. Which of the following statements is TRUE regarding mitosis and/or meiosis in this cell? Group of answer choices During metaphase I of meiosis I, there will be 8 sister chromatids in the cell. This cell contains 16 chromosomes. During metaphase of mitosis, there will be 4 homologous chromosomes lined up single file along the metaphase plate. This cell can only produce two different kinds of gametes. In Unit 3, we practiced identifying the elements of evolution by natural selection in different populations. Imagine that you observe a population of snails in a marsh habitat. You collect the following data on the snail population over the course of ten years. There are three kinds of snail shell colors: green, yellow, and brown. You observe that snail shell color is heritable. In Year 1, the frequency of snail shell color phenotypes are: 20% green, 40% yellow, and 40% brown. The different shell colors allow the snails to blend in with different parts of the marsh habitat. In Year 10, the frequency of the snail shell color phenotypes are: 20% green, 40% yellow, and 40% brown. Did natural selection occur in this population? How do you know? Group of answer choices Yes; the phenotypes do not exist in equal ratios in the population in year 1 or 10. No; the different phenotypes blended in to different parts of the environment. No; there was no differential survival/reproduction between phenotypes and allele frequencies did not change. Yes; phenotypic and genetic variation existed in the population because individuals interact with their environment.
Md.Daniyal A.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD